USD339730SExpiredUtility

Knife sharpener

45
Individually held — no corporate assignee on recordPriority: Feb 25, 1991Filed: Feb 25, 1991Granted: Sep 28, 1993
Est. expiryFeb 25, 2011(expired)· nominal 20-yr term from priority
Inventors:James M. Pigott
45
PatentIndex Score
6
Cited by
5
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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