USD333081SExpiredUtility

Knife sharpener

76
Individually held — no corporate assignee on recordPriority: Oct 31, 1990Filed: Oct 31, 1990Granted: Feb 9, 1993
Est. expiryOct 31, 2010(expired)· nominal 20-yr term from priority
Inventors:Louis S. Glesser
76
PatentIndex Score
17
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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