Chair back
Description
Claims
The ornamental design for a chair back, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D767321
Type: Grant
Filed: Aug 19, 2015
Date of Patent: Sep 27, 2016
Inventor: Yang Xingchang (Foshan)
Primary Examiner: Manpreet Matharu
Assistant Examiner: Keith Wilson
Application Number: 29/536,842
Type: Grant
Filed: Aug 19, 2015
Date of Patent: Sep 27, 2016
Inventor: Yang Xingchang (Foshan)
Primary Examiner: Manpreet Matharu
Assistant Examiner: Keith Wilson
Application Number: 29/536,842
Classifications
Current U.S. Class:
D6/716.4