CN217473521U - Reaction kettle for petrochemical industry - Google Patents
Reaction kettle for petrochemical industry Download PDFInfo
- Publication number
- CN217473521U CN217473521U CN202220714518.1U CN202220714518U CN217473521U CN 217473521 U CN217473521 U CN 217473521U CN 202220714518 U CN202220714518 U CN 202220714518U CN 217473521 U CN217473521 U CN 217473521U
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- China
- Prior art keywords
- fixedly connected
- shell
- wall
- reaction kettle
- frame
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- Expired - Fee Related
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 3
- 238000005096 rolling process Methods 0.000 claims 3
- 239000003208 petroleum Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000792 Monel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a petrochemical reaction kettle, the circumference outer wall of shell is fixedly connected with a protection frame, the bottom of protection frame is fixedly connected with a plurality of supports, the bottom inner wall of shell is fixedly connected with a plurality of connecting blocks, the other end of a plurality of connecting blocks is fixedly connected with the same mounting block, the upper surface of the mounting block is provided with a rotating groove, the top of shell is fixedly connected with a motor, one end of the motor output shaft is fixedly connected with a connecting rod, and the connecting rod passes through the shell, the other end of the connecting rod is fixedly connected with a rotating disc, and the rotating disc is positioned in the rotating groove, and is movably connected with the rotating groove, in the utility model, residual oil on the inner wall of the reaction kettle is removed through the arrangement of a connecting frame, and can be opened according to the needs through the arrangement of a heating rod, the practicability of the device body is improved, through the arrangement of a stirring mechanism, improve the stirring effect of the petroleum in the device body.
Description
Technical Field
The utility model relates to a reation kettle technical field especially relates to a reation kettle for petrochemical.
Background
The broad understanding of the reaction kettle is that the reaction kettle is a container for physical or chemical reaction, and the heating, evaporation, cooling and low-speed mixing functions required by the process are realized through the structural design and parameter configuration of the container.
The reaction kettle is widely applied to the fields of petroleum, chemical industry, rubber, pesticides, dyes, medicines, food and the like, and is a pressure container for completing technological processes of vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation and the like, such as a reactor, a reaction pot, a decomposition pot, a polymerization kettle and the like; the material is generally carbon manganese steel, stainless steel, zirconium, nickel-based (Hastelloy, Monel, Inconel) alloy and other composite materials.
At present reation kettle that petrochemical used on the market, because the thick reason of oil, reation kettle is inside at the during operation, and the oil glues glutinous to the reation kettle inner wall easily, and the staff can waste a lot of time when clearing up reation kettle is inside, for this reason, I propose a reation kettle for petrochemical.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a reaction kettle for petrochemical industry.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a reaction kettle for petrochemical industry comprises a shell, wherein a protection frame is fixedly connected to the circumferential outer wall of the shell, a plurality of supports are fixedly connected to the bottom of the protection frame, a plurality of connecting blocks are fixedly connected to the inner wall of the bottom of the shell, the other ends of the connecting blocks are fixedly connected with the same installation block, a rotating groove is formed in the upper surface of the installation block, a motor is fixedly connected to the top of the shell, a connecting rod is fixedly connected to one end of an output shaft of the motor and penetrates through the shell, a rotating disc is fixedly connected to the other end of the connecting rod and is located in the rotating groove and movably connected with the rotating groove, a plurality of connecting frames are fixedly connected to the circumferential outer wall of the connecting rod, and the same reinforcing ring is fixedly connected to the bottom of the connecting frames;
the bottom of shell has been seted up the through-hole, and is equipped with discharge mechanism in the through-hole, the circumference outer wall of shell is equipped with pan feeding mechanism, the circumference outer wall cover of connecting rod is equipped with the second gear, the upper surface of installation piece is equipped with a plurality of rabbling mechanisms.
Preferably, one side of the connecting frame is tightly attached to the inner wall of the circumference of the shell, the reinforcing ring is tightly attached to the bottom of the shell, the top of the shell is fixedly connected with a protective shell, and the motor is located in the protective shell.
Preferably, pan feeding mechanism includes the mounting hole, the circumference outer wall at the shell is seted up to the mounting hole, fixed mounting has the feeding frame in the mounting hole, and the upper surface of feeding frame is equipped with the mounting panel, and threaded connection has a plurality of threaded rods between mounting panel and the feeding frame.
Preferably, discharge mechanism includes fixed frame, the through-hole fixed connection that fixed frame and shell bottom were seted up, the activity groove has been seted up to the circumference inner wall of fixed frame, and activity inslot swing joint has the rotor plate, the spacing groove that runs through is seted up to the circumference inner wall of activity groove, the circumference outer wall fixedly connected with holding rod of rotor plate, and the holding rod is located the spacing inslot, a plurality of first discharge openings that run through are seted up to the bottom inner wall of fixed frame, a plurality of second discharge openings that run through are seted up to the upper surface of rotor plate.
Preferably, a plurality of heating rods are fixedly connected between the plurality of connecting frames and the connecting rod.
Preferably, rabbling mechanism includes the turning block, the bottom of turning block is rotated with the upper surface of installation piece and is connected, the first gear of top fixedly connected with of turning block, the top fixedly connected with dead lever of first gear, a plurality of puddlers of circumference outer wall fixedly connected with of dead lever, and a plurality of first gears and the meshing of second gear.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, through the arrangement of the connecting frame, when the device body is used, the motor is started, the output shaft of the motor rotates to drive the connecting rod to rotate, and the connecting rod rotates to drive the connecting frame to rotate, so that the connecting frame can eradicate residual oil on the inner wall of the reaction kettle, and the use efficiency of the device body is improved;
2. in the utility model, through the arrangement of the heating rod, the heating rod heats the petroleum in the reaction kettle, can be opened according to the needs, and can also stir the petroleum in the reaction kettle, thereby improving the practicability of the device body;
3. the utility model discloses in, through rabbling mechanism's setting, when the connecting rod rotated, the connecting rod rotated and drives the second gear revolve, and the second gear revolve rotates and drives a plurality of first gear revolve to make a plurality of rabbling mechanisms take place the motion, improve the stirring effect of the inside oil of device body.
The utility model discloses simple structure through the setting of connection frame, remains the oil to the reation kettle inner wall and shovels, through the setting of heating rod, can open as required, improves the practicality of device body, through rabbling mechanism's setting, improves the stirring effect of the inside oil of device body.
Drawings
Fig. 1 is a schematic diagram of a three-dimensional structure of a petrochemical reaction kettle provided by the utility model;
fig. 2 is a schematic view of a cross-sectional structure of an internal mechanism of a petrochemical reaction kettle provided by the utility model;
fig. 3 is an explosion structure diagram of a discharge mechanism of a petrochemical reaction kettle provided by the utility model;
fig. 4 is a schematic view of a local structure of a reaction kettle for petrochemical industry.
In the figure: 1. a housing; 2. a protective shell; 3. a feeding mechanism; 301. mounting holes; 302. a feeding frame; 303. mounting a plate; 304. a threaded rod; 4. a protective frame; 5. supporting; 6. a discharging mechanism; 601. a fixing frame; 602. a movable groove; 603. a limiting groove; 604. a first discharge hole; 605. a rotating plate; 606. a second discharge hole; 607. a holding rod; 7. a connecting rod; 8. a motor; 9. a connecting frame; 10. a heating rod; 11. connecting blocks; 12. mounting blocks; 13. a rotating groove; 14. rotating the disc; 15. a stirring mechanism; 151. rotating the block; 152. a first gear; 153. fixing the rod; 154. a stirring rod; 16. a second gear; 17. and (7) reinforcing the ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example one
Referring to fig. 1-4, a petrochemical reaction kettle comprises a shell 1, wherein a protection frame 4 is fixedly connected to the outer circumferential wall of the shell 1, a plurality of supports 5 are fixedly connected to the bottom of the protection frame 4, a plurality of connecting blocks 11 are fixedly connected to the inner bottom wall of the shell 1, the other ends of the connecting blocks 11 are fixedly connected with a same mounting block 12, a rotating groove 13 is formed in the upper surface of the mounting block 12, a motor 8 is fixedly connected to the top of the shell 1, a connecting rod 7 is fixedly connected to one end of an output shaft of the motor 8, the connecting rod 7 penetrates through the shell 1, a rotating disc 14 is fixedly connected to the other end of the connecting rod 7, the rotating disc 14 is located in the rotating groove 13, the rotating disc 14 is movably connected with the rotating groove 13, a plurality of connecting frames 9 are fixedly connected to the outer circumferential wall of the connecting rod 7, and a same reinforcing ring 17 is fixedly connected to the bottoms of the connecting frames 9; the through-hole has been seted up to the bottom of shell 1, and is equipped with discharge mechanism 6 in the through-hole, and the circumference outer wall of shell 1 is equipped with pan feeding mechanism 3, and the circumference outer wall cover of connecting rod 7 is equipped with second gear 16, and the upper surface of installation piece 12 is equipped with a plurality of rabbling mechanisms 15.
Example two
Referring to fig. 1-4, the utility model provides a new technical scheme: a petrochemical reaction kettle comprises a shell 1, a protection frame 4 is fixedly connected to the outer circumferential wall of the shell 1, a plurality of supports 5 are fixedly connected to the bottom of the protection frame 4, a plurality of connecting blocks 11 are fixedly connected to the inner bottom wall of the shell 1, the other ends of the connecting blocks 11 are fixedly connected with a same mounting block 12, a rotating groove 13 is formed in the upper surface of the mounting block 12, a motor 8 is fixedly connected to the top of the shell 1, a connecting rod 7 is fixedly connected to one end of an output shaft of the motor 8, the connecting rod 7 penetrates through the shell 1, a rotating disc 14 is fixedly connected to the other end of the connecting rod 7, the rotating disc 14 is located in the rotating groove 13, the rotating disc 14 is movably connected with the rotating groove 13, a plurality of connecting frames 9 are fixedly connected to the outer circumferential wall of the connecting rod 7, a same reinforcing ring 17 is fixedly connected to the bottoms of the connecting frames 9, and a reinforcing function is played for the connecting frames 9 through the arrangement of the reinforcing ring 17, through the arrangement of the connecting frame 9, when the device body is used, the motor 8 is started, the output shaft of the motor 8 rotates to drive the connecting rod 7 to rotate, the connecting rod 7 rotates to drive the connecting frame 9 to rotate, so that the connecting frame 9 eradicates residual oil on the inner wall of the reaction kettle, the use efficiency of the device body is improved, a plurality of heating rods 10 are fixedly connected between the connecting frames 9 and the connecting rod 7, the heating rods 10 heat the oil in the reaction kettle through the arrangement of the heating rods 10 and can be opened as required, the heating rods 10 supply power through the electric slip ring and can stir the oil inside at the same time, the practicability of the device body is improved, one side of the connecting frame 9 is tightly attached to the circumferential inner wall of the shell 1, the reinforcing ring 17 is tightly attached to the bottom of the shell 1, the top of the shell 1 is fixedly connected with the protective shell 2, and the motor 8 is positioned in the protective shell 2, the bottom of the shell 1 is provided with a through hole, a discharging mechanism 6 is arranged in the through hole, the discharging mechanism 6 comprises a fixed frame 601, the fixed frame 601 is fixedly connected with the through hole arranged at the bottom of the shell 1, the inner circumferential wall of the fixed frame 601 is provided with a movable groove 602, the movable groove 602 is movably connected with a rotating plate 605, a high-temperature resistant sealing ring is arranged between the rotating plate 605 and the movable groove 602, the specific material can be selected according to the requirement, the inner circumferential wall of the movable groove 602 is provided with a through limiting groove 603, the outer circumferential wall of the rotating plate 605 is fixedly connected with a holding rod 607, the holding rod 607 is positioned in the limiting groove 603, the inner bottom wall of the fixed frame 601 is provided with a plurality of through first discharging holes 604, the upper surface of the rotating plate 605 is provided with a plurality of through second discharging holes 606, the outer circumferential wall of the shell 1 is provided with a feeding mechanism 3, the feeding mechanism 3 comprises a mounting hole 301, the mounting hole 301 is arranged at the outer circumferential wall of the shell 1, the feeding frame 302 is fixedly installed in the installation hole 301, the installation plate 303 is arranged on the upper surface of the feeding frame 302, a plurality of threaded rods 304 are connected between the installation plate 303 and the feeding frame 302 in a threaded manner, the second gear 16 is sleeved on the outer circumferential wall of the connecting rod 7, a plurality of stirring mechanisms 15 are arranged on the upper surface of the installation block 12, each stirring mechanism 15 comprises a rotating block 151, the bottom of the rotating block 151 is rotatably connected with the upper surface of the installation block 12, the top of the rotating block 151 is fixedly connected with a first gear 152, the top of the first gear 152 is fixedly connected with a fixing rod 153, the outer circumferential wall of the fixing rod 153 is fixedly connected with a plurality of stirring rods 154, the plurality of first gears 152 are meshed with the second gear 16, through the arrangement of the stirring mechanisms 15, when the connecting rod 7 rotates, the connecting rod 7 rotates to drive the second gear 16 to rotate, the second gear 16 rotates to drive the plurality of first gears 152 to rotate, so that the plurality of stirring mechanisms 15 move, improve the stirring effect of the petroleum in the device body.
The working principle is as follows: when a worker uses the device body, the threaded rod 304 is unfastened, the mounting plate 303 is opened, petroleum is poured into the reaction kettle through the feeding frame 302, when the reaction kettle works, the motor 8 and the heating rod 10 are started, so that the output shaft of the motor 8 rotates, the output shaft of the motor 8 rotates to drive the connecting rod 7 to rotate, the connecting rod 7 rotates to drive the connecting frame 9 to rotate, the connecting frame 9 scrapes the inner wall of the reaction kettle to prevent the petroleum from being adhered to the inner wall of the reaction kettle, the petroleum in the reaction kettle is heated through the action of the heating rod 10 and can be started as required, meanwhile, the connecting rod 7 rotates to drive the second gear 16 to rotate, the second gear 16 rotates to drive the plurality of first gears 152 to rotate, the first gears 152 rotate to drive the fixing rod 153 to rotate, the fixing rod 153 rotates to drive the plurality of stirring rods 154 to rotate, the petroleum in the reaction kettle is stirred, the stirring effect is improved, and if the petroleum in the reaction kettle needs to be discharged, the holding rod 607 is rotated, so that the holding rod 607 slides in the limiting groove 603 to drive the rotating plate 605 to rotate, and when the first discharging hole 604 and the second discharging hole 606 are overlapped, the petroleum in the reaction kettle is discharged, and the petroleum is convenient for a worker to collect the petroleum.
However, as is well known to those skilled in the art, the working principle and wiring method of the motor 8 and the heating rod 10 are common and are conventional means or common knowledge, and thus will not be described in detail herein, and those skilled in the art can make any choice according to their needs or convenience.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a reation kettle for petrochemical industry, includes shell (1), its characterized in that, the circumference outer wall fixedly connected with protection frame (4) of shell (1), the bottom fixedly connected with of protection frame (4) a plurality of supports live (5), the bottom inner wall fixedly connected with of shell (1) a plurality of connecting blocks (11), the other end fixedly connected with of a plurality of connecting blocks (11) is same installation piece (12), the upper surface of installation piece (12) has seted up rotation groove (13), the top fixedly connected with motor (8) of shell (1), the one end fixedly connected with connecting rod (7) of motor (8) output shaft, and connecting rod (7) pass shell (1), the other end fixedly connected with rolling disc (14) of connecting rod (7), and rolling disc (14) are located rotation groove (13), and rolling disc (14) and rotation groove (13) swing joint, the outer wall of the circumference of the connecting rod (7) is fixedly connected with a plurality of connecting frames (9), and the bottom of each connecting frame (9) is fixedly connected with the same reinforcing ring (17);
the bottom of shell (1) has been seted up the through-hole, and is equipped with discharge mechanism (6) in the through-hole, the circumference outer wall of shell (1) is equipped with pan feeding mechanism (3), the circumference outer wall cover of connecting rod (7) is equipped with second gear (16), the upper surface of installation piece (12) is equipped with a plurality of rabbling mechanisms (15).
2. The petrochemical reaction kettle according to claim 1, wherein one side of the connecting frame (9) is tightly attached to the inner wall of the circumference of the shell (1), the reinforcing ring (17) is tightly attached to the bottom of the shell (1), the top of the shell (1) is fixedly connected with the protective shell (2), and the motor (8) is located in the protective shell (2).
3. The reaction kettle for the petrochemical industry as claimed in claim 1, wherein the feeding mechanism (3) comprises a mounting hole (301), the mounting hole (301) is formed in the outer wall of the circumference of the shell (1), a feeding frame (302) is fixedly mounted in the mounting hole (301), a mounting plate (303) is arranged on the upper surface of the feeding frame (302), and a plurality of threaded rods (304) are connected between the mounting plate (303) and the feeding frame (302) in a threaded manner.
4. The petrochemical reaction kettle according to any one of claims 1-3, wherein the discharging mechanism (6) comprises a fixed frame (601), the fixed frame (601) is fixedly connected with a through hole formed in the bottom of the housing (1), a movable groove (602) is formed in the circumferential inner wall of the fixed frame (601), a rotating plate (605) is movably connected in the movable groove (602), a penetrating limiting groove (603) is formed in the circumferential inner wall of the movable groove (602), a holding rod (607) is fixedly connected to the circumferential outer wall of the rotating plate (605), the holding rod (607) is located in the limiting groove (603), a plurality of penetrating first discharging holes (604) are formed in the bottom inner wall of the fixed frame (601), and a plurality of penetrating second discharging holes (606) are formed in the upper surface of the rotating plate (605).
5. The petrochemical reaction kettle according to any one of claims 1 to 3, wherein a plurality of heating rods (10) are fixedly connected between the plurality of connecting frames (9) and the connecting rod (7).
6. The petrochemical reaction kettle as claimed in claim 1, wherein the stirring mechanism (15) comprises a rotating block (151), the bottom of the rotating block (151) is rotatably connected with the upper surface of the mounting block (12), a first gear (152) is fixedly connected to the top of the rotating block (151), a fixing rod (153) is fixedly connected to the top of the first gear (152), a plurality of stirring rods (154) are fixedly connected to the outer circumferential wall of the fixing rod (153), and the plurality of first gears (152) are meshed with the second gear (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220714518.1U CN217473521U (en) | 2022-03-30 | 2022-03-30 | Reaction kettle for petrochemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220714518.1U CN217473521U (en) | 2022-03-30 | 2022-03-30 | Reaction kettle for petrochemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217473521U true CN217473521U (en) | 2022-09-23 |
Family
ID=83307064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220714518.1U Expired - Fee Related CN217473521U (en) | 2022-03-30 | 2022-03-30 | Reaction kettle for petrochemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217473521U (en) |
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2022
- 2022-03-30 CN CN202220714518.1U patent/CN217473521U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |