Knife sharpener
Description
Claims
The ornamental design for a knife sharpener, as shown and described.
Referenced Cited
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Patent History
Patent number: D641227
Type: Grant
Filed: Aug 2, 2010
Date of Patent: Jul 12, 2011
Inventor: Yu-Chin Kuo (Tainan)
Primary Examiner: Phillip S Hyder
Assistant Examiner: Roselynne Cody
Attorney: Kamrath & Associates PA
Application Number: 29/366,932
Type: Grant
Filed: Aug 2, 2010
Date of Patent: Jul 12, 2011
Inventor: Yu-Chin Kuo (Tainan)
Primary Examiner: Phillip S Hyder
Assistant Examiner: Roselynne Cody
Attorney: Kamrath & Associates PA
Application Number: 29/366,932
Classifications
Current U.S. Class:
D8/93