USD328476SExpiredUtility

3 dimensinal chessboard

52
Individually held — no corporate assignee on recordPriority: Jul 20, 1990Filed: Jul 20, 1990Granted: Aug 4, 1992
Est. expiryJul 20, 2010(expired)· nominal 20-yr term from priority
Inventors:Thomas F. Titus
52
PatentIndex Score
14
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a 3 dimensional chessboard, as shown and described.

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