USD335075SExpiredUtility

Knife sharpener

Assignee: PLASTICS NORTHWEST INCPriority: Sep 25, 1989Filed: Sep 25, 1989Granted: Apr 27, 1993
Est. expirySep 25, 2009(expired)· nominal 20-yr term from priority
Inventors:Michael Martin
48
PatentIndex Score
6
Cited by
2
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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