Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
Patent History
Patent number: D686441
Type: Grant
Filed: Jan 29, 2013
Date of Patent: Jul 23, 2013
Inventor: Yang Xingchang (Guangdong)
Primary Examiner: Mimosa De
Application Number: 29/444,278
Type: Grant
Filed: Jan 29, 2013
Date of Patent: Jul 23, 2013
Inventor: Yang Xingchang (Guangdong)
Primary Examiner: Mimosa De
Application Number: 29/444,278
Classifications
Current U.S. Class:
D6/716.4;
D6/366