Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
Patent History
Patent number: D604071
Type: Grant
Filed: Jul 30, 2009
Date of Patent: Nov 17, 2009
Inventor: Tung-Hua Su (Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/341,122
Type: Grant
Filed: Jul 30, 2009
Date of Patent: Nov 17, 2009
Inventor: Tung-Hua Su (Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/341,122
Classifications
Current U.S. Class:
D6/502;
D6/366