USD309926SExpiredUtility

Puzzle

11
Individually held — no corporate assignee on recordPriority: Oct 7, 1988Filed: Oct 7, 1988Granted: Aug 14, 1990
Est. expiryOct 7, 2008(expired)· nominal 20-yr term from priority
Inventors:George A. PetrucelliCalvin D. Grade
11
PatentIndex Score
1
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a puzzle, as shown and described.

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