USD280286SExpiredUtility
Knife sharpener
Est. expiryJun 29, 2003(expired)· nominal 20-yr term from priority
Inventors:Jan F. Van Asten
69
PatentIndex Score
10
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a knife sharpener, as shown.
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