US Patent D922987 Ear tip with three layer sleeves

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Is a

Patent

Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D922987

Patent Inventor Names

Chol Ho Yoo0

Date of Patent

June 22, 2021

Patent Application Number

29747492

Date Filed

August 24, 2020

Patent Citations

‌

US Patent 10477307 Waterproof headphone structure

Patent Citations Received

‌

US Patent D1001287 Hearing aid

‌

US Patent D1041454 Earphone

‌

US Patent D1020703 Earbud

Patent Primary Examiner

‌

Paula Allen Greene

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