USD252615SExpiredUtility
Combined protractor, triangle, compass and beam compass
Individually held — no corporate assignee on recordPriority: Mar 21, 1977Filed: Mar 21, 1977Granted: Aug 14, 1979
Est. expiryMar 21, 1997(expired)· nominal 20-yr term from priority
Inventors:Gilbert T. Lopez
75
PatentIndex Score
13
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a combined protractor, triangle, compass and beam compass, as shown.
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