USD252713SExpiredUtility
Chess board
Individually held — no corporate assignee on recordPriority: Dec 14, 1977Filed: Dec 14, 1977Granted: Aug 21, 1979
Est. expiryDec 14, 1997(expired)· nominal 20-yr term from priority
Inventors:Gary D. Weiss
46
PatentIndex Score
3
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a chess board, as shown.
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