US20180271263A1 - Protective Case for Portable Electronic Device - Google Patents
Protective Case for Portable Electronic Device Download PDFInfo
- Publication number
- US20180271263A1 US20180271263A1 US15/922,918 US201815922918A US2018271263A1 US 20180271263 A1 US20180271263 A1 US 20180271263A1 US 201815922918 A US201815922918 A US 201815922918A US 2018271263 A1 US2018271263 A1 US 2018271263A1
- Authority
- US
- United States
- Prior art keywords
- glass substrate
- protective case
- frame
- bottom plate
- accommodation
- 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.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F5/00—Holders or carriers for hand articles; Holders or carriers for use while travelling or camping
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C2011/002—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C2011/003—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00 for portable computing devices, e.g. laptop, tablet, netbook, game boy, navigation system, calculator
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F2200/00—Details not otherwise provided for in A45F
- A45F2200/05—Holder or carrier for specific articles
- A45F2200/0516—Portable handheld communication devices, e.g. mobile phone, pager, beeper, PDA, smart phone
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F2200/00—Details not otherwise provided for in A45F
- A45F2200/05—Holder or carrier for specific articles
- A45F2200/0525—Personal portable computing devices, e.g. laptop, tablet, netbook, game boy, navigation system, calculator
Definitions
- the present invention relates to a protective case for a 3C product, and more particularly to a protective case for a portable electronic device, such as a mobile phone, a tablet computer or a personal digital assistant for protecting the portable electronic device from being scraped.
- a portable electronic device such as a mobile phone, a tablet computer or a personal digital assistant for protecting the portable electronic device from being scraped.
- Portable electronic devices such as mobile phones, tablets, or personal digital processing devices (PDA) have become increasingly popular and are almost inseparable from our daily life. Therefore, people pay more attention to the protection requirements for such portable electronic devices.
- the aforesaid portable electronic devices a mobile phone taken as an example, may be damaged inevitably during use. For example, the mobile phone may crack due to falling or be scraped.
- the mobile phone is covered with a protective case 10 , as shown in FIG. 1 , to protect the appearance of the mobile phone from being damaged.
- the protective case is formed of a soft elastomeric material by molding, such as thermoplastic polyurethanes (TPU), polyurethane (PU), or silicone-containing materials.
- TPU thermoplastic polyurethanes
- PU polyurethane
- silicone-containing materials such as thermoplastic polyurethanes
- the protective case is to cover the periphery and the back of the mobile phone and the touch screen of the mobile phone is exposed, so that the user may operate the mobile phone without
- the protective case due to the soft material of the protective case, when the mobile phone is placed on a table or a hard surface, it is easy to scrape the protective case.
- the back 11 of the protective case may have a lot of scratches 12 .
- the scratches 12 don't affect the functionality of the protective case, the overall appearance is not pleasing to the eyes.
- the scratches 12 are easy to accumulate dirt and bacteria, so it is necessary to improve the existing protective case. Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.
- the primary object of the present invention is to provide a protective case for a portable electronic device.
- the main technology and the purpose of the present invention is that the back of the protective case is provided with a glass substrate.
- the glass substrate itself has a high hardness and scratch resistance to enhance wear resistance and scratch resistance of the protective case.
- the surface of the glass substrate is smooth and translucent, thereby enhancing the quality of the protective case and improving the appearance.
- a protective case for a portable electronic device comprises a bottom plate, a frame, and a glass substrate.
- the bottom plate has at least one hole.
- the frame is connected to the bottom plate.
- the frame has at least one through hole.
- the frame cooperates with the bottom plate to form an accommodation space.
- a side of the bottom plate, opposite to the accommodation space, cooperates with the frame to form an accommodation trough.
- the glass substrate corresponds in shape to the accommodation trough.
- An adhesive layer is provided between the bottom plate and the glass substrate. The glass substrate is adhesively disposed in the accommodation trough.
- the bottom plate is made of a hard material and has a flange around a periphery thereof;
- the frame is made of a soft material, an inner peripheral edge of the frame is provided with an engaging groove, and the flange is engaged in the engaging groove.
- the glass substrate has at least one perforation corresponding to the hole.
- the adhesive layer is one of a liquid optical clear adhesive and a silicone rubber.
- the glass substrate has a height not beyond a depth of the accommodation trough after being attached.
- four corners of the frame are provided with raised ribs adjacent to the accommodation trough.
- the glass substrate is provided with a color.
- an adhesive surface of the glass substrate is printed with a pattern, a design, or a character.
- the glass substrate can increase the scratch resistance of the back of the protective case, and may be provided with a color, a pattern or a character to enhance the quality of the protective case.
- FIG. 1 is a perspective view of a conventional protective case
- FIG. 2 is an exploded view of the present invention
- FIG. 3 is a perspective view of the present invention
- FIG. 4 is a partial sectional view of the present invention.
- FIG. 5 is a schematic view of a glass substrate provided with a pattern of the present invention.
- FIG. 6 is a perspective view of the present invention provided with a pattern.
- the present invention discloses a protective case 20 for a portable electronic device.
- the protective case 20 comprises a bottom plate 21 , a frame 24 , and a glass substrate 30 .
- the bottom plate 21 is a hard flat plate for covering the back of the portable electronic device.
- the bottom plate 21 has at least one hole 22 corresponding to at least one lens of the portable electronic device and a flange 23 around its periphery.
- the frame 24 is a flexible frame and is connected to the bottom plate 21 for covering the periphery of the portable electronic device.
- the frame 24 has at least one through hole 25 corresponding to at least one port of the portable electronic device.
- the inner peripheral edge of the frame 24 is provided with an engaging groove 26 .
- the flange 23 is engaged in the engaging groove 26 .
- the frame 24 cooperates with the bottom plate 21 to form an accommodation space 27 for receiving the portable electronic device.
- a side of the bottom plate 21 opposite to the accommodation space 27 , cooperates with the frame 24 to form an accommodation trough 28 .
- Four corners of the frame 24 are provided with raised ribs 241 adjacent to the accommodation trough 28 .
- the glass substrate 30 corresponds in shape to the accommodation trough 28 .
- the glass substrate 30 has at least one first perforation 31 corresponding to the hole 21 .
- An adhesive layer 32 is provided between the bottom plate 21 and the glass substrate 30 , such that the glass substrate 30 is adhesively disposed in the accommodation trough 28 .
- the glass substrate 30 may increase the scratch resistance of the back of the protective case 20 , and may be provided with a color, a pattern or a character to enhance the quality of the protective case 20 .
- the bottom plate 21 of the protective case 20 is made of a hard material which is less deformable, for example, polycarbonate (PC), poly ethylene terephthalate (PET), etc., but not limited thereto.
- the frame 24 of the protective case 20 is made of a soft elastic material, such as thermoplastic polyurethane (TPU), polyurethane (PU), thermoplastic elastomer (TPE), polypropylene (PP), etc., but not limited thereto, so that the protective case 20 provides a shockproof effect.
- TPU thermoplastic polyurethane
- PU polyurethane
- TPE thermoplastic elastomer
- PP polypropylene
- the hole 22 of the bottom plate 21 corresponds in position to the camera lens, logo or specific pattern of the electronic device.
- the through hole 25 of the frame 24 may correspond in position to the position of the human-machine or transmission interface of the portable electronic device, such as a microphone, a port, a power switch, and a volume key.
- the glass substrate 30 may be made of tampered glass to improve the hardness and scratch resistance effectively and to prolong the service life of the glass substrate 30 .
- the bottom plate 21 is placed in a mold, and the frame 24 is formed by injection molding to wrap the flange 23 of the bottom plate 21 and further to form the accommodation space 27 and the accommodation trough 28 .
- One side surface of the glass substrate 30 is coated with the adhesive layer 32 and disposed in the accommodation trough 28 and then adhered to the bottom plate 21 .
- the adhesive layer 32 is a viscous and transparent liquid optical clear adhesive, but not limited thereto, so that the glass substrate 30 is firmly bonded without separation and has good light transmittance.
- the adhesive layer 32 is a silicone rubber layer that is releasable, but not limited thereto, so that the glass substrate 30 can be repeatedly adhered to or separated from the bottom plate 21 , and the glass substrate 30 can be replaced with ease to increase its utility.
- the bottom plate 21 is made of a hard material and is not easily deformable and is excellent in flatness, so it can be attached to the glass substrate 30 tightly.
- the surface of the glass substrate 30 is not beyond the accommodation trough 28 . That is, the height of the glass substrate 30 does not exceed the depth of the accommodation trough 28 after being attached, so that the edge of the glass substrate 30 can be protected from direct impact by the protective case 20 .
- the raised ribs 241 at the four corners of the frame 24 first withstand the impact, which can achieve the effect of cushioning and avoid direct impact on the glass substrate 30 if the protective case 20 is accidentally dropped on the ground or accidentally collided.
- the glass substrate 30 may be provided with a color.
- An adhesive surface of the glass substrate 30 may be printed with a pattern, a design, a character, and so on (as shown in FIG. 5 ), but not limited thereto.
- the protective case 20 is more beautiful and its quality is improved.
- the user can change the pattern, the design or the character of the glass substrate 30 as desired. (Because the adhesive layer 32 is a silicone rubber layer that is releasable, it can be repeatedly pasted and replaced.)
- the present invention is very practical.
Abstract
A protective case for a portable electronic device includes a bottom plate, a frame, and a glass substrate. The bottom plate has at least one hole and a flange around a periphery thereof. The frame is connected to the bottom plate. The frame has at least one through hole. An inner peripheral edge of the frame is provided with an engaging groove. The flange is engaged in the engaging groove. The frame cooperates with the bottom plate to form an accommodation space for accommodating a portable electronic device. A side of the bottom plate, opposite to the accommodation space, cooperates with the frame to form an accommodation trough. The glass substrate corresponds in shape to the accommodation trough. An adhesive layer is provided between the bottom plate and the glass substrate. The glass substrate is adhesively disposed in the accommodation trough.
Description
- A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to any reproduction by anyone of the patent disclosure, as it appears in the United States Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever.
- The present invention relates to a protective case for a 3C product, and more particularly to a protective case for a portable electronic device, such as a mobile phone, a tablet computer or a personal digital assistant for protecting the portable electronic device from being scraped.
- Portable electronic devices, such as mobile phones, tablets, or personal digital processing devices (PDA), have become increasingly popular and are almost inseparable from our daily life. Therefore, people pay more attention to the protection requirements for such portable electronic devices. The aforesaid portable electronic devices, a mobile phone taken as an example, may be damaged inevitably during use. For example, the mobile phone may crack due to falling or be scraped. In order to prevent the mobile phone from being damaged, the mobile phone is covered with a
protective case 10, as shown inFIG. 1 , to protect the appearance of the mobile phone from being damaged. The protective case is formed of a soft elastomeric material by molding, such as thermoplastic polyurethanes (TPU), polyurethane (PU), or silicone-containing materials. The protective case is to cover the periphery and the back of the mobile phone and the touch screen of the mobile phone is exposed, so that the user may operate the mobile phone without removing the protective case. The protective case is able to withstand the impact and protect the mobile phone. - However, due to the soft material of the protective case, when the mobile phone is placed on a table or a hard surface, it is easy to scrape the protective case. The
back 11 of the protective case may have a lot ofscratches 12. Although thescratches 12 don't affect the functionality of the protective case, the overall appearance is not pleasing to the eyes. Besides, thescratches 12 are easy to accumulate dirt and bacteria, so it is necessary to improve the existing protective case. Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems. - In view of the aforesaid shortcomings, the primary object of the present invention is to provide a protective case for a portable electronic device. The main technology and the purpose of the present invention is that the back of the protective case is provided with a glass substrate. The glass substrate itself has a high hardness and scratch resistance to enhance wear resistance and scratch resistance of the protective case. Moreover, the surface of the glass substrate is smooth and translucent, thereby enhancing the quality of the protective case and improving the appearance.
- According to the aforesaid object of the present invention, a protective case for a portable electronic device is provided. The protective case comprises a bottom plate, a frame, and a glass substrate. The bottom plate has at least one hole. The frame is connected to the bottom plate. The frame has at least one through hole. The frame cooperates with the bottom plate to form an accommodation space. A side of the bottom plate, opposite to the accommodation space, cooperates with the frame to form an accommodation trough. The glass substrate corresponds in shape to the accommodation trough. An adhesive layer is provided between the bottom plate and the glass substrate. The glass substrate is adhesively disposed in the accommodation trough.
- In an embodiment of the present invention, the bottom plate is made of a hard material and has a flange around a periphery thereof; the frame is made of a soft material, an inner peripheral edge of the frame is provided with an engaging groove, and the flange is engaged in the engaging groove.
- In an embodiment of the present invention, the glass substrate has at least one perforation corresponding to the hole.
- In an embodiment of the present invention, the adhesive layer is one of a liquid optical clear adhesive and a silicone rubber.
- In an embodiment of the present invention, the glass substrate has a height not beyond a depth of the accommodation trough after being attached.
- In an embodiment of the present invention, four corners of the frame are provided with raised ribs adjacent to the accommodation trough.
- In an embodiment of the present invention, the glass substrate is provided with a color.
- In an embodiment of the present invention, an adhesive surface of the glass substrate is printed with a pattern, a design, or a character.
- Through the above structure, the glass substrate can increase the scratch resistance of the back of the protective case, and may be provided with a color, a pattern or a character to enhance the quality of the protective case.
-
FIG. 1 is a perspective view of a conventional protective case; -
FIG. 2 is an exploded view of the present invention; -
FIG. 3 is a perspective view of the present invention; -
FIG. 4 is a partial sectional view of the present invention; -
FIG. 5 is a schematic view of a glass substrate provided with a pattern of the present invention; and -
FIG. 6 is a perspective view of the present invention provided with a pattern. - Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.
- As shown in
FIG. 2 toFIG. 4 , the present invention discloses aprotective case 20 for a portable electronic device. Theprotective case 20 comprises abottom plate 21, aframe 24, and aglass substrate 30. - The
bottom plate 21 is a hard flat plate for covering the back of the portable electronic device. Thebottom plate 21 has at least onehole 22 corresponding to at least one lens of the portable electronic device and aflange 23 around its periphery. - The
frame 24 is a flexible frame and is connected to thebottom plate 21 for covering the periphery of the portable electronic device. Theframe 24 has at least one throughhole 25 corresponding to at least one port of the portable electronic device. The inner peripheral edge of theframe 24 is provided with anengaging groove 26. Theflange 23 is engaged in theengaging groove 26. Theframe 24 cooperates with thebottom plate 21 to form anaccommodation space 27 for receiving the portable electronic device. A side of thebottom plate 21, opposite to theaccommodation space 27, cooperates with theframe 24 to form anaccommodation trough 28. Four corners of theframe 24 are provided with raisedribs 241 adjacent to theaccommodation trough 28. - The
glass substrate 30 corresponds in shape to theaccommodation trough 28. Theglass substrate 30 has at least onefirst perforation 31 corresponding to thehole 21. Anadhesive layer 32 is provided between thebottom plate 21 and theglass substrate 30, such that theglass substrate 30 is adhesively disposed in theaccommodation trough 28. Theglass substrate 30 may increase the scratch resistance of the back of theprotective case 20, and may be provided with a color, a pattern or a character to enhance the quality of theprotective case 20. - The assembly, function and details of the aforesaid embodiment are described below. As shown in
FIG. 2 toFIG. 4 , thebottom plate 21 of theprotective case 20 is made of a hard material which is less deformable, for example, polycarbonate (PC), poly ethylene terephthalate (PET), etc., but not limited thereto. Theframe 24 of theprotective case 20 is made of a soft elastic material, such as thermoplastic polyurethane (TPU), polyurethane (PU), thermoplastic elastomer (TPE), polypropylene (PP), etc., but not limited thereto, so that theprotective case 20 provides a shockproof effect. For the camera lens, the logo, the microphone, or the port of the portable electronic device to be exposed, not covered by theprotective case 20, thehole 22 of thebottom plate 21 corresponds in position to the camera lens, logo or specific pattern of the electronic device. The throughhole 25 of theframe 24 may correspond in position to the position of the human-machine or transmission interface of the portable electronic device, such as a microphone, a port, a power switch, and a volume key. Theglass substrate 30 may be made of tampered glass to improve the hardness and scratch resistance effectively and to prolong the service life of theglass substrate 30. To assemble the present invention, theflange 23 of thebottom plate 21 is first engaged with the engaginggroove 26 of theframe 24. Preferably, thebottom plate 21 is placed in a mold, and theframe 24 is formed by injection molding to wrap theflange 23 of thebottom plate 21 and further to form theaccommodation space 27 and theaccommodation trough 28. One side surface of theglass substrate 30 is coated with theadhesive layer 32 and disposed in theaccommodation trough 28 and then adhered to thebottom plate 21. Preferably, theadhesive layer 32 is a viscous and transparent liquid optical clear adhesive, but not limited thereto, so that theglass substrate 30 is firmly bonded without separation and has good light transmittance. Preferably, theadhesive layer 32 is a silicone rubber layer that is releasable, but not limited thereto, so that theglass substrate 30 can be repeatedly adhered to or separated from thebottom plate 21, and theglass substrate 30 can be replaced with ease to increase its utility. Thebottom plate 21 is made of a hard material and is not easily deformable and is excellent in flatness, so it can be attached to theglass substrate 30 tightly. It is to be noted that the surface of theglass substrate 30 is not beyond theaccommodation trough 28. That is, the height of theglass substrate 30 does not exceed the depth of theaccommodation trough 28 after being attached, so that the edge of theglass substrate 30 can be protected from direct impact by theprotective case 20. In other words, the raisedribs 241 at the four corners of theframe 24 first withstand the impact, which can achieve the effect of cushioning and avoid direct impact on theglass substrate 30 if theprotective case 20 is accidentally dropped on the ground or accidentally collided. - It is to be noted that, as shown in
FIGS. 5 and 6 , theglass substrate 30 may be provided with a color. An adhesive surface of theglass substrate 30 may be printed with a pattern, a design, a character, and so on (as shown inFIG. 5 ), but not limited thereto. Thereby, theprotective case 20 is more beautiful and its quality is improved. The user can change the pattern, the design or the character of theglass substrate 30 as desired. (Because theadhesive layer 32 is a silicone rubber layer that is releasable, it can be repeatedly pasted and replaced.) The present invention is very practical. - Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.
Claims (8)
1. A protective case for a portable electronic device, comprising:
a bottom plate, having at least one hole;
a frame, connected to the bottom plate, the frame having at least one through hole; the frame cooperating with the bottom plate to form an accommodation space, a side of the bottom plate, opposite to the accommodation space, cooperating with the frame to form an accommodation trough; and
a glass substrate, corresponding in shape to the accommodation trough; a adhesive layer being provided between the bottom plate and the glass substrate, the glass substrate being adhesively disposed in the accommodation trough.
2. The protective case as claimed in claim 1 , wherein the bottom plate is made of a hard material and has a flange around a periphery thereof; the frame is made of a soft material, an inner peripheral edge of the frame is provided with an engaging groove, and the flange is engaged in the engaging groove.
3. The protective case as claimed in claim 1 , wherein the glass substrate has at least one perforation corresponding to the hole.
4. The protective case as claimed in claim 1 , wherein the adhesive layer is one of a liquid optical clear adhesive and a silicone rubber.
5. The protective case as claimed in claim 1 , wherein the glass substrate has a height not beyond a depth of the accommodation trough after being attached.
6. The protective case as claimed in claim 1 , wherein four corners of the frame are provided with raised ribs adjacent to the accommodation trough.
7. The protective case as claimed in claim 1 , wherein the glass substrate is provided with a color.
8. The protective case as claimed in claim 1 , wherein an adhesive surface of the glass substrate is printed with a pattern, a design, or a character.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW106204071U TWM547790U (en) | 2017-03-21 | 2017-03-21 | Structure of portable electronic equipment protective cover |
TW106204071 | 2017-03-21 |
Publications (1)
Publication Number | Publication Date |
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US20180271263A1 true US20180271263A1 (en) | 2018-09-27 |
Family
ID=60188913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/922,918 Abandoned US20180271263A1 (en) | 2017-03-21 | 2018-03-16 | Protective Case for Portable Electronic Device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20180271263A1 (en) |
CN (1) | CN207949184U (en) |
TW (1) | TWM547790U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2577244A (en) * | 2018-08-31 | 2020-03-25 | Reso Ltd | Covers and cases |
US20210143858A1 (en) * | 2019-11-07 | 2021-05-13 | John Thomas Wangercyn | Case with secondary well and annular ridge about apertures |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109921168A (en) * | 2019-02-16 | 2019-06-21 | 江苏中科智睿物联网科技有限公司 | A kind of flare shape super wide band plane single pole sub antenna |
CN214677919U (en) * | 2021-02-02 | 2021-11-12 | 东莞市一创科技有限公司 | Electronic product protective sleeve with glass cover plate |
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- 2018-02-11 CN CN201820245627.7U patent/CN207949184U/en not_active Expired - Fee Related
- 2018-03-16 US US15/922,918 patent/US20180271263A1/en not_active Abandoned
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US20160149608A1 (en) * | 2014-11-24 | 2016-05-26 | Chin-Juh Wong | Protective case for electronic device |
US20170049000A1 (en) * | 2015-08-11 | 2017-02-16 | Samsung Electronics Co., Ltd. | Accessory device for electronic device and method for manufacturing the same |
US20170054466A1 (en) * | 2015-08-19 | 2017-02-23 | Pelican Products, Inc. | Protective case for mobile electronic communication device |
US9882596B2 (en) * | 2015-08-19 | 2018-01-30 | Pelican Products, Inc. | Protective case for mobile electronic communication device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2577244A (en) * | 2018-08-31 | 2020-03-25 | Reso Ltd | Covers and cases |
US20210143858A1 (en) * | 2019-11-07 | 2021-05-13 | John Thomas Wangercyn | Case with secondary well and annular ridge about apertures |
US11569861B2 (en) * | 2019-11-07 | 2023-01-31 | John Thomas Wangercyn | Case with secondary well and annular ridge about apertures |
Also Published As
Publication number | Publication date |
---|---|
CN207949184U (en) | 2018-10-12 |
TWM547790U (en) | 2017-08-21 |
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