Office chair
Description
Claims
The ornamental design for a office chair, as shown and described.
Referenced Cited
U.S. Patent Documents
| D456626 | May 7, 2002 | Su |
| D489191 | May 4, 2004 | Ma |
| D493627 | August 3, 2004 | Ma |
| D495509 | September 7, 2004 | Breen |
| D497265 | October 19, 2004 | Tai |
| D511418 | November 15, 2005 | Breen |
| D512232 | December 6, 2005 | Wu |
| D512843 | December 20, 2005 | Breen |
| D534365 | January 2, 2007 | Breen |
| D543717 | June 5, 2007 | Chen |
| D545076 | June 26, 2007 | Dallmann et al. |
Patent History
Patent number: D557025
Type: Grant
Filed: Apr 23, 2007
Date of Patent: Dec 11, 2007
Inventor: Yung-Hua Chen (Sinjhuang City, Taipei County 242)
Primary Examiner: Mimosa De
Attorney: Rosenberg, Klein & Lee
Application Number: 29/274,406
Type: Grant
Filed: Apr 23, 2007
Date of Patent: Dec 11, 2007
Inventor: Yung-Hua Chen (Sinjhuang City, Taipei County 242)
Primary Examiner: Mimosa De
Attorney: Rosenberg, Klein & Lee
Application Number: 29/274,406
Classifications
Current U.S. Class:
D6/366