Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
Patent History
Patent number: D600477
Type: Grant
Filed: May 18, 2009
Date of Patent: Sep 22, 2009
Inventor: Tung-Hua Su (Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/337,275
Type: Grant
Filed: May 18, 2009
Date of Patent: Sep 22, 2009
Inventor: Tung-Hua Su (Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/337,275
Classifications
Current U.S. Class:
D6/502;
D6/366