USD641227SActiveUtility

Knife sharpener

Assignee: KUO YU-CHINPriority: Aug 2, 2010Filed: Aug 2, 2010Granted: Jul 12, 2011
Est. expiryAug 2, 2030(~4 yrs left)· nominal 20-yr term from priority
Inventors:Yu-Chin Kuo
27
PatentIndex Score
2
Cited by
27
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a knife sharpener, as shown and described.

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