Ratch wheel
Description
Claims
The ornamental design for a ratch wheel, as shown and described.
Referenced Cited
U.S. Patent Documents
| 6668686 | December 30, 2003 | Hsien |
| 6722234 | April 20, 2004 | Hu |
| 6758641 | July 6, 2004 | Hu |
| D498776 | November 23, 2004 | Hu |
| D498778 | November 23, 2004 | Hu |
| 6874391 | April 5, 2005 | Hsien |
| 7044029 | May 16, 2006 | Hopper et al. |
| 7178429 | February 20, 2007 | Lin |
| D558006 | December 25, 2007 | Tuan Mu |
| 8051747 | November 8, 2011 | Tsai |
| 8186247 | May 29, 2012 | Chen |
Patent History
Patent number: D743223
Type: Grant
Filed: Jan 21, 2014
Date of Patent: Nov 17, 2015
Inventor: Chih-Min Chang (Xiushui Township, Changhua County)
Primary Examiner: Randall Gholson
Application Number: 29/479,807
Type: Grant
Filed: Jan 21, 2014
Date of Patent: Nov 17, 2015
Inventor: Chih-Min Chang (Xiushui Township, Changhua County)
Primary Examiner: Randall Gholson
Application Number: 29/479,807
Classifications
Current U.S. Class:
D8/25