USD257617SExpiredUtility
Gem holder for color evaluating
Individually held — no corporate assignee on recordPriority: Nov 20, 1978Filed: Nov 20, 1978Granted: Dec 9, 1980
Est. expiryNov 20, 1998(expired)· nominal 20-yr term from priority
Inventors:Michael Z. Wolkenfeld
29
PatentIndex Score
4
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a gem holder for color evaluating, substantially as shown and described.
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