Chair back
Description
Claims
The ornamental design for a chair back, as shown and described.
Referenced Cited
U.S. Patent Documents
D493627 | August 3, 2004 | Ma |
6843530 | January 18, 2005 | Wu |
D501333 | February 1, 2005 | Piretti |
D509975 | September 27, 2005 | Pan |
D510671 | October 18, 2005 | Wu |
D510826 | October 25, 2005 | Pan |
D534384 | January 2, 2007 | Su |
D540079 | April 10, 2007 | Bock |
D540080 | April 10, 2007 | Su |
D546086 | July 10, 2007 | Chen |
D591540 | May 5, 2009 | Lu |
Patent History
Patent number: D644466
Type: Grant
Filed: May 18, 2010
Date of Patent: Sep 6, 2011
Inventor: Yao-Chuan Wu (Chiayi Hsien)
Primary Examiner: Mimosa De
Attorney: Kamrath & Associates PA
Application Number: 29/361,942
Type: Grant
Filed: May 18, 2010
Date of Patent: Sep 6, 2011
Inventor: Yao-Chuan Wu (Chiayi Hsien)
Primary Examiner: Mimosa De
Attorney: Kamrath & Associates PA
Application Number: 29/361,942
Classifications
Current U.S. Class:
D6/502