USD329797SExpiredUtility

Knife sharpener

64
Individually held — no corporate assignee on recordPriority: Dec 4, 1989Filed: Dec 4, 1989Granted: Sep 29, 1992
Est. expiryDec 4, 2009(expired)· nominal 20-yr term from priority
Inventors:John M. Baker
64
PatentIndex Score
10
Cited by
7
References
1
Claims

Claims

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

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