Knife sharpener
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Description
The broken lines in the various figures illustrate portions of the knife sharpener that form no part of the claim.
Claims
The ornamental design for a knife sharpener, as shown and described.
Referenced Cited
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Patent History
Patent number: D688545
Type: Grant
Filed: Mar 7, 2012
Date of Patent: Aug 27, 2013
Assignee: Edgecraft Corporation (Avondale, PA)
Inventors: George C. Jensen (Bear, DE), Abraham Leibson (Lambertville, NJ), Daniel D. Friel, Sr. (Greenville, DE), Daniel D. Friel, Jr. (Kennett Square, PA)
Primary Examiner: Philip S Hyder
Assistant Examiner: Roselynne Cody
Application Number: 29/415,055
Type: Grant
Filed: Mar 7, 2012
Date of Patent: Aug 27, 2013
Assignee: Edgecraft Corporation (Avondale, PA)
Inventors: George C. Jensen (Bear, DE), Abraham Leibson (Lambertville, NJ), Daniel D. Friel, Sr. (Greenville, DE), Daniel D. Friel, Jr. (Kennett Square, PA)
Primary Examiner: Philip S Hyder
Assistant Examiner: Roselynne Cody
Application Number: 29/415,055
Classifications
Current U.S. Class:
D8/63