US Patent D939922 Digital door lock

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Is a

Patent

Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

D939922

Patent Inventor Names

Xiaoe Xu0

Yongjun Xin0

Date of Patent

January 4, 2022

Patent Application Number

29637225

Date Filed

February 15, 2018

Patent Citations Received

‌

US Patent D1012668 Fingerprint password lock

‌

US Patent D991010 Locking device

‌

US Patent D991011 Locking device

‌

US Patent D1007276 Smart lock

Patent Primary Examiner

‌

Richard E. Chilcot, Jr.

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