Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
Patent History
Patent number: D577519
Type: Grant
Filed: Oct 18, 2007
Date of Patent: Sep 30, 2008
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/296,384
Type: Grant
Filed: Oct 18, 2007
Date of Patent: Sep 30, 2008
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/296,384
Classifications
Current U.S. Class:
D6/502;
D6/366