Chair backrest
Description
Claims
The ornamental design for a chair backrest, as shown.
Referenced Cited
U.S. Patent Documents
D474346 | May 13, 2003 | Saylor et al. |
D489191 | May 4, 2004 | Ma |
D493627 | August 3, 2004 | Ma |
D507124 | July 12, 2005 | Yang |
D510488 | October 11, 2005 | Su |
D511418 | November 15, 2005 | Breen |
D512574 | December 13, 2005 | Tsai |
D514832 | February 14, 2006 | Tsai |
D516828 | March 14, 2006 | Tsai |
D527920 | September 12, 2006 | Giugiaro |
D528811 | September 26, 2006 | Giugiaro |
D534365 | January 2, 2007 | Breen |
D534384 | January 2, 2007 | Su |
Patent History
Patent number: D544735
Type: Grant
Filed: Nov 23, 2006
Date of Patent: Jun 19, 2007
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/250,627
Type: Grant
Filed: Nov 23, 2006
Date of Patent: Jun 19, 2007
Inventor: Tung-Hua Su (Kuwi Jen Hsiang, Tainan Hsien)
Primary Examiner: Mimosa De
Attorney: Banger Shia
Application Number: 29/250,627
Classifications
Current U.S. Class:
D6/502;
D6/366