USD310040SExpiredUtility
Spherical compass
Individually held — no corporate assignee on recordPriority: Jan 11, 1988Filed: Jan 11, 1988Granted: Aug 21, 1990
Est. expiryJan 11, 2008(expired)· nominal 20-yr term from priority
Inventors:Fred Dibert
21
PatentIndex Score
1
Cited by
10
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a spherical compass, as shown and described.
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