Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown.
Referenced Cited
Patent History
Patent number: D553886
Type: Grant
Filed: Mar 25, 2007
Date of Patent: Oct 30, 2007
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/278,303
Type: Grant
Filed: Mar 25, 2007
Date of Patent: Oct 30, 2007
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/278,303
Classifications
Current U.S. Class:
D6/502