Double layer soundproof earplug
Latest SHENZHEN YUNDE TECHNOLOGY CO., LTD. Patents:
Description
The broken lines depict a portion of the double layer soundproof earplug that form no part of the claimed design.
Claims
The ornamental design for double layer soundproof earplug, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D931437
Type: Grant
Filed: Sep 5, 2020
Date of Patent: Sep 21, 2021
Assignee: SHENZHEN YUNDE TECHNOLOGY CO., LTD. (Shenzhen)
Inventor: Jinniu Yuan (Shenzhen)
Primary Examiner: Richelle G Shelton
Application Number: 29/749,502
Type: Grant
Filed: Sep 5, 2020
Date of Patent: Sep 21, 2021
Assignee: SHENZHEN YUNDE TECHNOLOGY CO., LTD. (Shenzhen)
Inventor: Jinniu Yuan (Shenzhen)
Primary Examiner: Richelle G Shelton
Application Number: 29/749,502
Classifications
Current U.S. Class:
Ear Plug Or Nose Clip (D24/106)