Grindstone
Description
The broken line showing is for illustrative purposes only and forms no part of the claimed design.
Claims
The ornamental design for a grindstone, as shown and described.
Referenced Cited
U.S. Patent Documents
D278968 | May 28, 1985 | Farmer, Sr. |
D309414 | July 24, 1990 | Shimizu |
D328604 | August 11, 1992 | Chien |
D363867 | November 7, 1995 | Harrison et al. |
D447756 | September 11, 2001 | Wang |
D472565 | April 1, 2003 | Amamoto |
D505683 | May 31, 2005 | Pfaff |
D523717 | June 27, 2006 | Guo et al. |
D537698 | March 6, 2007 | Hasegawa |
D558801 | January 1, 2008 | Chen |
20020197942 | December 26, 2002 | Jansson |
20040038631 | February 26, 2004 | Chen et al. |
20060211345 | September 21, 2006 | Levsen |
Patent History
Patent number: D601598
Type: Grant
Filed: Sep 23, 2008
Date of Patent: Oct 6, 2009
Inventors: Ching-Sen Yang (Taichung), Eric Liao (Taichung)
Primary Examiner: Sandra Snapp
Assistant Examiner: Patricia Palasik
Application Number: 29/324,875
Type: Grant
Filed: Sep 23, 2008
Date of Patent: Oct 6, 2009
Inventors: Ching-Sen Yang (Taichung), Eric Liao (Taichung)
Primary Examiner: Sandra Snapp
Assistant Examiner: Patricia Palasik
Application Number: 29/324,875
Classifications
Current U.S. Class:
Bench Or Table Mounted (D15/125)