Chair backrest
Description
FIG, 2 is a front view of the design;
Claims
The ornamental design for a chair backrest, as shown and described.
Referenced Cited
U.S. Patent Documents
D449172 | October 16, 2001 | Van De Riet et al. |
D449938 | November 6, 2001 | Vanderiet et al. |
D456164 | April 30, 2002 | Vanderiet et al. |
D505801 | June 7, 2005 | Cesaroni et al. |
D512238 | December 6, 2005 | Chen |
D541067 | April 24, 2007 | Lin |
D549479 | August 28, 2007 | Su |
D561485 | February 12, 2008 | Hock |
D574646 | August 12, 2008 | Su |
D586577 | February 17, 2009 | Koh |
Patent History
Patent number: D595520
Type: Grant
Filed: Dec 29, 2008
Date of Patent: Jul 7, 2009
Inventor: Shu O Su (Tainan City)
Primary Examiner: Mimosa De
Attorney: Pro-Techtor International Services
Application Number: 29/330,116
Type: Grant
Filed: Dec 29, 2008
Date of Patent: Jul 7, 2009
Inventor: Shu O Su (Tainan City)
Primary Examiner: Mimosa De
Attorney: Pro-Techtor International Services
Application Number: 29/330,116
Classifications
Current U.S. Class:
D6/502