USD274497SExpiredUtility

Knife sharpener

61
Assignee: AMERICAN HOME PRODPriority: Feb 22, 1982Filed: Feb 22, 1982Granted: Jul 3, 1984
Est. expiryFeb 22, 2002(expired)· nominal 20-yr term from priority
Inventors:Herbert E. ZabelCasimir Gruska
61
PatentIndex Score
10
Cited by
5
References
1
Claims

Claims

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

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