Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
Patent History
Patent number: D603196
Type: Grant
Filed: Jun 10, 2009
Date of Patent: Nov 3, 2009
Inventor: Shu O Su (Tainan City)
Primary Examiner: Mimosa De
Attorney: Pro-Techtor Int'l Services
Application Number: 29/338,370
Type: Grant
Filed: Jun 10, 2009
Date of Patent: Nov 3, 2009
Inventor: Shu O Su (Tainan City)
Primary Examiner: Mimosa De
Attorney: Pro-Techtor Int'l Services
Application Number: 29/338,370
Classifications
Current U.S. Class:
D6/502;
D6/366