USD338506SExpiredUtility

Puzzle

Individually held — no corporate assignee on recordPriority: Oct 18, 1991Filed: Oct 18, 1991Granted: Aug 17, 1993
Est. expiryOct 18, 2011(expired)· nominal 20-yr term from priority
Inventors:Hui-Chih Lee
41
PatentIndex Score
9
Cited by
2
References
1
Claims

Claims

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

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