Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
Patent History
Patent number: D666032
Type: Grant
Filed: May 3, 2012
Date of Patent: Aug 28, 2012
Inventor: Tung-Hua Su (Tainan)
Primary Examiner: Mimosa De
Application Number: 29/419,957
Type: Grant
Filed: May 3, 2012
Date of Patent: Aug 28, 2012
Inventor: Tung-Hua Su (Tainan)
Primary Examiner: Mimosa De
Application Number: 29/419,957
Classifications
Current U.S. Class:
D6/502