Grindstone
Latest Sanwa Kenma, Ltd. Patents:
Description
The portion shown by broken lines is for illustrative purposes only and forms no part of the claimed design. The dashed lines show a borderline between the claimed design and other portion.
Claims
The ornamental design for a grindstone, as shown and described.
Referenced Cited
Patent History
Patent number: D609545
Type: Grant
Filed: Feb 3, 2009
Date of Patent: Feb 9, 2010
Assignee: Sanwa Kenma, Ltd.
Inventors: Kazuhisa Ueno (Uji), Katsuji Sunagawa (Uji), Izumi Araki (Uji), Eiki Sakaguchi (Uji)
Primary Examiner: Antoine D Davis
Attorney: Gerald E. Hespos
Application Number: 29/331,843
Type: Grant
Filed: Feb 3, 2009
Date of Patent: Feb 9, 2010
Assignee: Sanwa Kenma, Ltd.
Inventors: Kazuhisa Ueno (Uji), Katsuji Sunagawa (Uji), Izumi Araki (Uji), Eiki Sakaguchi (Uji)
Primary Examiner: Antoine D Davis
Attorney: Gerald E. Hespos
Application Number: 29/331,843
Classifications
Current U.S. Class:
D8/70;
Element Or Attachment (D15/126)