CN210540692U - Radiation-proof environment-friendly curtain - Google Patents

Radiation-proof environment-friendly curtain Download PDF

Info

Publication number
CN210540692U
CN210540692U CN201921156661.8U CN201921156661U CN210540692U CN 210540692 U CN210540692 U CN 210540692U CN 201921156661 U CN201921156661 U CN 201921156661U CN 210540692 U CN210540692 U CN 210540692U
Authority
CN
China
Prior art keywords
piece
shaped
radiation
curtain
shaped piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201921156661.8U
Other languages
Chinese (zh)
Inventor
秦守东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Name Is At Sun Shading And Energy Saving Science And Technology Ltd
Original Assignee
Jiangsu Name Is At Sun Shading And Energy Saving Science And Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Name Is At Sun Shading And Energy Saving Science And Technology Ltd filed Critical Jiangsu Name Is At Sun Shading And Energy Saving Science And Technology Ltd
Priority to CN201921156661.8U priority Critical patent/CN210540692U/en
Application granted granted Critical
Publication of CN210540692U publication Critical patent/CN210540692U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

A radiation-proof environment-friendly curtain comprises a curtain body, a first U-shaped piece, a second U-shaped piece, a third U-shaped piece and a flexible solar power generation board; the first U-shaped piece is vertically arranged and positioned at two sides of the curtain body, and a pressing component is arranged on the first U-shaped piece; the second U-shaped piece is transversely arranged, the opening of the second U-shaped piece faces downwards, and a clamping assembly is arranged in the second U-shaped piece; the third U-shaped part is positioned below the second U-shaped part, the opening of the third U-shaped part faces upwards, and the structure of the third U-shaped part is the same as that of the second U-shaped part; the hanging ring is arranged on the second U-shaped piece, and the heavy object is arranged on the third U-shaped piece; the flexible solar power generation board is arranged on the curtain body; the curtain body comprises a waterproof fabric layer, a flame-retardant layer and an anti-radiation layer; the radiation protection layer is arranged between the flame-retardant layers, and the flame-retardant layers are connected with the waterproof fabric layer. The utility model discloses have the radiation protection function, the sunshade effect is good, and green conveniently fixes the (window) curtain to and assemble and separate each layer of (window) curtain, avoid leading to whole (window) curtain abandonment because of the part damages.

Description

Radiation-proof environment-friendly curtain
Technical Field
The utility model relates to a (window) curtain technical field especially relates to a radiation protection environmental protection (window) curtain.
Background
The curtain is made of materials such as cloth, hemp, yarn, aluminum sheet, wood chip, metal and the like, has the functions of shading, insulating heat and adjusting indoor light, and is divided into cotton gauze, polyester fabric, polyester-cotton blended fabric, cotton-hemp blended fabric, non-woven fabric and the like according to the materials, and different materials, textures, colors, patterns and the like are integrated to form the curtain with different styles;
the rapid development of science and technology brings convenience to human beings, meanwhile, radiation pollution is caused everywhere, the influence of radiation on human beings is not contended, the radiation protection problem is concerned by more and more people, people living in modern society inevitably receive a large amount of radiation every day, and even if the people stay indoors, the people are inevitably damaged by outdoor radiation because the building doors and windows and glass have certain permeability;
the traditional curtain only has certain light-shading property and decoration, but cannot effectively block radiation and reduce possible harm to human bodies, and the traditional curtain is not environment-friendly enough and inconvenient to use and cannot meet the requirements of modern life.
Disclosure of Invention
Objects of the invention
For solving the technical problem that exists among the background art, the utility model provides a radiation protection environmental protection (window) curtain has the radiation protection function, and the sunshade effect is good, conveniently fixes the (window) curtain to and assemble and separate each layer of (window) curtain, avoid leading to whole (window) curtain abandonment because of the part damages, play resources are saved and the effect of environmental protection, through setting up flexible solar panel, turn into the electric energy with solar energy, green.
(II) technical scheme
In order to solve the problems, the utility model provides a radiation-proof environment-friendly curtain, which comprises a curtain body, a first U-shaped piece, a second U-shaped piece, a third U-shaped piece, a hanging ring, a heavy object and a flexible solar power generation plate;
the first U-shaped piece is vertically arranged and positioned at two sides of the curtain body, and a pressing component is arranged on the first U-shaped piece; the pressing assembly comprises a pressing plate, a movable rod, a limiting piece and an elastic piece; the pressing plate is vertically arranged in the first U-shaped piece and presses the curtain body; the movable rod is longitudinally arranged on the pressing plate, and the other end of the movable rod penetrates through the first U-shaped piece and is connected with the limiting piece; the elastic piece is longitudinally arranged and connected with the pressing plate and the first U-shaped piece;
the second U-shaped piece is transversely arranged, the opening of the second U-shaped piece faces downwards, and a clamping assembly is arranged in the second U-shaped piece; the clamping assembly comprises a clamping piece, a moving piece, a bidirectional threaded rod and a rotating button; a placing groove is longitudinally arranged on the second U-shaped piece; the two-way threaded rod is longitudinally arranged, one end of the two-way threaded rod is connected with the rotating button, and the other end of the two-way threaded rod extends into the placing groove and is rotationally connected with the second U-shaped piece; the moving parts are positioned at two ends of the bidirectional threaded rod and are in threaded connection with the bidirectional threaded rod; the clamping pieces are arranged on the moving piece, and the two clamping pieces clamp the curtain body;
the third U-shaped part is positioned below the second U-shaped part, the opening of the third U-shaped part faces upwards, and the structure of the third U-shaped part is the same as that of the second U-shaped part; the hanging ring is arranged on the second U-shaped piece, and the heavy object is arranged on the third U-shaped piece;
the flexible solar power generation plate is vertically arranged on the curtain body; the curtain body comprises a waterproof fabric layer, a flame-retardant layer and an anti-radiation layer; the radiation protection layer is arranged between the flame-retardant layers, and one side of the flame-retardant layer, which is back to the radiation protection layer, is connected with the waterproof fabric layer.
Preferably, the pressing plate is provided with a sliding part, and a sliding groove is longitudinally arranged in the first U-shaped part; the sliding piece is positioned in the sliding groove and is in sliding connection with the first U-shaped piece.
Preferably, the number of the second U-shaped parts is multiple groups and the second U-shaped parts are arranged at equal intervals in the transverse direction.
Preferably, the number of the third U-shaped parts is multiple groups and the third U-shaped parts are arranged at equal intervals in the transverse direction.
Preferably, the hanging ring is provided with a connecting piece; be equipped with the external screw thread on the connecting piece, be equipped with the screw thread groove that the opening faces up on the second U type spare, connecting piece and second U type spare threaded connection.
Preferably, the weight is provided with a connecting piece; the connecting piece is provided with external threads, the third U-shaped piece is provided with a thread groove with a downward opening, and the connecting piece is in threaded connection with the third U-shaped piece.
Preferably, the surface of the flexible solar power generation panel is provided with a transparent waterproof film.
Preferably, the flexible solar power generation panel is provided with a male buckle, the curtain body is provided with a female buckle, and the flexible solar power generation panel is connected with the curtain body in a buckling mode.
Preferably, the waterproof fabric layer, the flame-retardant layer and the radiation-proof layer are connected through a magic tape bonding mode.
Preferably, the radiation protection layer is made of stainless steel metal fibers and fibers such as cotton and terylene by blending.
The above technical scheme of the utility model has following profitable technological effect:
the waterproof fabric layer plays a waterproof role, the flame-retardant layer can play a certain flame-retardant effect, and the radiation-proof layer plays a radiation-proof role, so that the injury of radiation to a human body is avoided; the waterproof fabric layer, the flame-retardant layer and the radiation-proof layer are connected in a magic tape bonding mode, so that each layer can be conveniently assembled and disassembled, each layer can be replaced according to actual conditions, the phenomenon that the whole curtain is abandoned due to partial damage is avoided, and the effects of saving resources and protecting environment are achieved;
the first U-shaped parts press two sides of the curtain body tightly, the second U-shaped parts clamp the top of the curtain body, and the third U-shaped parts clamp the bottom of the curtain body, so that the curtain body is fixed, and the curtain body is convenient to mount and dismount;
the hanging ring is arranged on the second U-shaped piece, so that the curtain can be conveniently hung on the cross rod; the weight is arranged at the bottom of the third U-shaped part and is matched with the first U-shaped part and the third U-shaped part, so that the curtain body can be always in a vertical state, the influence on the sun-shading effect of the curtain body due to the swinging of the curtain body along with wind is avoided, and the practicability is realized;
the flexible solar power generation panel is vertically arranged on the curtain body and is arranged in a row at a transverse equal distance, so that solar energy can be converted into electric energy, and the curtain is green and environment-friendly.
Drawings
Fig. 1 is a schematic structural view of the radiation-proof environment-friendly curtain of the present invention.
Fig. 2 is a schematic structural view of a curtain body in the radiation-proof environment-friendly curtain of the present invention.
Fig. 3 is a schematic structural view of a first U-shaped member in the radiation-proof environment-friendly curtain of the present invention.
Fig. 4 is a schematic structural view of a second U-shaped member in the radiation-proof environment-friendly curtain of the present invention.
Reference numerals: 1. a curtain body; 2. a first U-shaped member; 3. a second U-shaped member; 4. a third U-shaped member; 5. hanging a ring; 6. a weight; 7. a flexible solar panel; 8. a waterproof fabric layer; 9. a flame retardant layer; 10. a radiation protective layer; 11. a compression plate; 12. a movable rod; 13. a limiting member; 14. an elastic member; 15. a chute; 16. a clamping member; 17. a moving member; 18. a bidirectional threaded rod; 19. and (6) turning a button.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the utility model provides a radiation-proof environment-friendly curtain, which comprises a curtain body 1, a first U-shaped member 2, a second U-shaped member 3, a third U-shaped member 4, a hanging ring 5, a heavy object 6 and a flexible solar power generation plate 7;
the first U-shaped pieces 2 are vertically arranged and positioned on two sides of the curtain body 1, and the first U-shaped pieces 2 are provided with pressing components; the pressing assembly comprises a pressing plate 11, a movable rod 12, a limiting piece 13 and an elastic piece 14; the pressing plate 11 is vertically arranged in the first U-shaped piece 2 and presses the curtain body 1; the movable rod 12 is longitudinally arranged on the pressing plate 11, and the other end of the movable rod penetrates through the first U-shaped part 2 and is connected with the limiting part 13; the elastic piece 14 is longitudinally arranged and connected with the pressing plate 11 and the first U-shaped piece 2;
the second U-shaped part 3 is transversely arranged, the opening of the second U-shaped part faces downwards, and a clamping assembly is arranged in the second U-shaped part 3; the clamping assembly comprises a clamping piece 16, a moving piece 17, a bidirectional threaded rod 18 and a rotating button 19; a placing groove is longitudinally arranged on the second U-shaped part 3; the bidirectional threaded rod 18 is longitudinally arranged, one end of the bidirectional threaded rod is connected with the rotating button 19, and the other end of the bidirectional threaded rod extends into the placing groove and is rotationally connected with the second U-shaped part 3; the moving piece 17 is positioned at both ends of the bidirectional threaded rod 18 and is in threaded connection with the bidirectional threaded rod; the clamping pieces 16 are arranged on the moving piece 17, and the two clamping pieces 16 clamp the curtain body 1; the number of the second U-shaped parts 3 is multiple and the second U-shaped parts are arranged at equal intervals in the transverse direction;
the third U-shaped part 4 is positioned below the second U-shaped part 3, the opening of the third U-shaped part is upward, and the structure of the third U-shaped part 4 is the same as that of the second U-shaped part 3; the number of the third U-shaped parts 4 is multiple and the third U-shaped parts are arranged at equal intervals in the transverse direction; the hanging ring 5 is arranged on the second U-shaped part 3, and the heavy object 6 is arranged on the third U-shaped part 4;
the flexible solar power generation plate 7 is vertically arranged on the curtain body 1; the number of the flexible solar power generation plates 7 is multiple and the flexible solar power generation plates are arranged in the transverse direction at equal intervals; the curtain body 1 comprises a waterproof fabric layer 8, a flame-retardant layer 9 and a radiation-proof layer 10; the radiation protection layer 10 is arranged between the flame retardant layers 9, and one side of the flame retardant layer 9, which faces away from the radiation protection layer 10, is connected with the waterproof fabric layer 8.
In an alternative embodiment, the compacting plate 11 is provided with a sliding part, and a sliding groove 15 is longitudinally arranged in the first U-shaped part 2; the sliding piece is positioned in the sliding groove 15 and is connected with the first U-shaped piece 2 in a sliding way. When the compacting plate 11 moves longitudinally, the sliding part slides along the sliding groove 15, so that the guiding effect is achieved, and the stability of the movement process of the compacting plate 11 is facilitated.
In an alternative embodiment, the hanging ring 5 is provided with a connecting piece; be equipped with the external screw thread on the connecting piece, be equipped with opening thread groove up on the second U type spare 3, connecting piece and 3 threaded connection of second U type spare conveniently take off and load on (window) curtain, have the practicality.
In an alternative embodiment, the weight 6 is provided with a connecting member; be equipped with the external screw thread on the connecting piece, be equipped with the screw thread groove that the opening is down on the third U type spare 4, connecting piece and 4 threaded connection of third U type spare can hang a certain amount of heavy object 6 as required, make (window) curtain body 1 be vertical state, avoid it to bring the influence to its sunshade effect along with the wind swing.
In an alternative embodiment, the surface of the flexible solar panel 7 is provided with a transparent waterproof film. The transparent waterproof film plays a waterproof and dustproof role, plays an excellent protection role for the flexible solar power generation panel 7, and cannot influence the photoelectric conversion efficiency of the flexible solar power generation panel 7.
In an optional embodiment, a male buckle is arranged on the flexible solar power generation panel 7, a female buckle is arranged on the curtain body 1, and the flexible solar power generation panel 7 is connected with the curtain body 1 in a buckling manner, so that the flexible solar power generation panel 7 is convenient to mount and dismount, and the flexible solar power generation panel 7 is convenient to maintain and replace.
In an optional embodiment, connect through the mode that the magic is pasted and is bonded between waterproof precoat 8, fire-retardant layer 9, the layer 10 of protecting against radiation, conveniently assemble and dismantle each layer, can change each layer according to actual conditions, avoid leading to whole (window) curtain abandonment because of partial damage.
In an optional embodiment, the radiation protection layer 10 is made of stainless steel metal fibers and fibers such as cotton and polyester fibers in a blending mode, and is low in production cost, good in radiation protection effect and strong in oxidation resistance.
In the utility model, the waterproof fabric layer 8 plays a waterproof role, the flame-retardant layer 9 can play a certain flame-retardant effect, and the radiation-proof layer 10 plays a radiation-proof role, so as to avoid the radiation from damaging the human body;
when the curtain is installed, firstly, the curtain body 1 is assembled; after the assembly is completed, the limiting piece 13 is pulled outwards, and the elastic piece 14 is in a compressed state; then, two sides of the curtain body 1 are plugged into the first U-shaped part 2, the limiting part 13 is loosened, the elastic part 14 is reset, and the pressing plate 11 presses the curtain body 1; then the turning button 19 is rotated to rotate the bidirectional threaded rod 18, so that the two moving parts 17 move oppositely, and the two clamping parts 16 clamp the curtain body 1; the plurality of second U-shaped pieces 3 clamp the top of the curtain body 1, and the plurality of third U-shaped pieces 4 clamp the bottom of the curtain body 1, so that the curtain body 1 is fixed, the curtain body 1 is convenient to mount and dismount, and each part of the curtain body 1 is also convenient to assemble and separate, the abandonment of the whole curtain caused by the damage of the part is avoided, and the effects of saving resources and protecting the environment are achieved;
the hanging ring 5 is arranged on the second U-shaped piece 3, so that the curtain can be conveniently hung on the cross rod; the weight 6 is arranged at the bottom of the third U-shaped part 4, and the weight 6 is matched with the first U-shaped part 2 and the third U-shaped part 4, so that the curtain body 1 can be always in a vertical state, the influence on the sun-shading effect caused by the wind swing of the curtain body is avoided, and the practicability is realized;
the flexible solar power generation board 7 is vertically arranged on the curtain body 1 and is arranged in a row in a transverse equidistant mode, so that solar energy can be converted into electric energy, and the curtain is green and environment-friendly.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (10)

1. The radiation-proof environment-friendly curtain is characterized by comprising a curtain body (1), a first U-shaped piece (2), a second U-shaped piece (3), a third U-shaped piece (4), a hanging ring (5), a heavy object (6) and a flexible solar power generation plate (7);
the first U-shaped piece (2) is vertically arranged and positioned at two sides of the curtain body (1), and the first U-shaped piece (2) is provided with a pressing component; the pressing assembly comprises a pressing plate (11), a movable rod (12), a limiting piece (13) and an elastic piece (14); the pressing plate (11) is vertically arranged in the first U-shaped piece (2) and presses the curtain body (1); the movable rod (12) is longitudinally arranged on the pressing plate (11), and the other end of the movable rod penetrates through the first U-shaped piece (2) and is connected with the limiting piece (13); the elastic piece (14) is longitudinally arranged and connected with the pressing plate (11) and the first U-shaped piece (2);
the second U-shaped part (3) is transversely arranged, the opening of the second U-shaped part faces downwards, and a clamping assembly is arranged in the second U-shaped part (3); the clamping assembly comprises a clamping piece (16), a moving piece (17), a bidirectional threaded rod (18) and a rotating button (19); a placing groove is longitudinally arranged on the second U-shaped part (3); the two-way threaded rod (18) is longitudinally arranged, one end of the two-way threaded rod is connected with the rotating button (19), and the other end of the two-way threaded rod extends into the placing groove and is rotationally connected with the second U-shaped piece (3); the moving piece (17) is positioned at two ends of the bidirectional threaded rod (18) and is in threaded connection with the bidirectional threaded rod; the clamping pieces (16) are arranged on the moving piece (17), and the two clamping pieces (16) clamp the curtain body (1);
the third U-shaped part (4) is positioned below the second U-shaped part (3) and has an upward opening, and the structure of the third U-shaped part (4) is the same as that of the second U-shaped part (3); the hanging ring (5) is arranged on the second U-shaped part (3), and the heavy object (6) is arranged on the third U-shaped part (4);
the flexible solar power generation board (7) is vertically arranged on the curtain body (1); the curtain body (1) comprises a waterproof fabric layer (8), a flame-retardant layer (9) and a radiation-proof layer (10); the radiation protection layer (10) is arranged between the flame retardant layers (9), and one side of the flame retardant layer (9) back to the radiation protection layer (10) is connected with the waterproof fabric layer (8).
2. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the compacting plate (11) is provided with a sliding part, and a sliding groove (15) is longitudinally arranged in the first U-shaped part (2); the sliding piece is positioned in the sliding groove (15) and is connected with the first U-shaped piece (2) in a sliding way.
3. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the number of the second U-shaped members (3) is multiple groups and the groups are arranged at equal intervals in the transverse direction.
4. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the number of the third U-shaped elements (4) is multiple groups and the third U-shaped elements are arranged at equal intervals in the transverse direction.
5. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the hanging ring (5) is provided with a connecting piece;
the connecting piece is provided with an external thread, the second U-shaped piece (3) is provided with a thread groove with an upward opening, and the connecting piece is in threaded connection with the second U-shaped piece (3).
6. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the heavy object (6) is provided with a connecting piece;
the connecting piece is provided with external threads, the third U-shaped piece (4) is provided with a thread groove with a downward opening, and the connecting piece is in threaded connection with the third U-shaped piece (4).
7. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the surface of the flexible solar power generation panel (7) is provided with a transparent waterproof film.
8. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the flexible solar power generation panel (7) is provided with a male buckle, the curtain body (1) is provided with a female buckle, and the flexible solar power generation panel (7) is connected with the curtain body (1) in a buckling manner.
9. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the waterproof fabric layer (8), the flame-retardant layer (9) and the radiation-proof layer (10) are connected by means of magic tape bonding.
10. The radiation-proof environment-friendly curtain as claimed in claim 1, wherein the radiation-proof layer (10) is made of stainless steel metal fibers and fibers such as cotton and terylene by blending.
CN201921156661.8U 2019-07-22 2019-07-22 Radiation-proof environment-friendly curtain Expired - Fee Related CN210540692U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921156661.8U CN210540692U (en) 2019-07-22 2019-07-22 Radiation-proof environment-friendly curtain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921156661.8U CN210540692U (en) 2019-07-22 2019-07-22 Radiation-proof environment-friendly curtain

Publications (1)

Publication Number Publication Date
CN210540692U true CN210540692U (en) 2020-05-19

Family

ID=70618480

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921156661.8U Expired - Fee Related CN210540692U (en) 2019-07-22 2019-07-22 Radiation-proof environment-friendly curtain

Country Status (1)

Country Link
CN (1) CN210540692U (en)

Similar Documents

Publication Publication Date Title
CN204282599U (en) Collapsible photovoltaic glass curtain wall
US20200287503A1 (en) Self-generating smart glass
CN210540692U (en) Radiation-proof environment-friendly curtain
CN205134775U (en) Take sunshine house top of sunshade
CN106988460B (en) Three-layer sunshade glass with middle fixed sunshade plate net
CN201036489Y (en) Transparent insulating curtain
CN105239727A (en) Sunlight room roof with sunshade
CN211200999U (en) Decorative wall board
CN211533848U (en) Solar power generation curtain
CN210842603U (en) Intelligent high-efficiency sun-shading curtain
CN210540681U (en) Solar energy-saving environment-friendly leather curtain
CN202454578U (en) Improved type double-glass solar cell module
CN208024230U (en) A kind of smart window of detectable gas leakage for kitchen use
CN214007021U (en) Multifunctional sun visor window for modern Chinese building facade
CN202919869U (en) Environmental-friendly charging curtain
CN217447349U (en) Intelligent curtain for home
CN206090974U (en) Energy -saving curtain wall
CN202960021U (en) Solar energy curtain
CN210947309U (en) Environment-friendly energy-saving glass curtain wall for building
CN207553285U (en) A kind of Green environmental-protection building room body
CN209789456U (en) Heat-insulation durable curtain
CN210948298U (en) Energy-conserving fire prevention cavity glass of can adjusting luminance
CN218624011U (en) Integrated glass window with built-in peep-proof structure
CN212897026U (en) Curtain wall convenient to construct and manufacture
CN203524424U (en) Energy-saving photochromic glass curtain

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200519

Termination date: 20210722