USD308549SExpiredUtility
Multiple level chess board
Individually held — no corporate assignee on recordPriority: Mar 27, 1987Filed: Mar 27, 1987Granted: Jun 12, 1990
Est. expiryMar 27, 2007(expired)· nominal 20-yr term from priority
Inventors:Walter M. Gengler
36
PatentIndex Score
7
Cited by
8
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for multiple level chess board, as shown and described.
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