USD274411SExpiredUtility
Protractor
Individually held — no corporate assignee on recordPriority: Dec 10, 1981Filed: Dec 10, 1981Granted: Jun 26, 1984
Est. expiryDec 10, 2001(expired)· nominal 20-yr term from priority
Inventors:Fahim R. Sidrak
57
PatentIndex Score
7
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a protractor, substantially as shown.
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