USD303211SExpiredUtility
Envelope opener
Individually held — no corporate assignee on recordPriority: Dec 29, 1986Filed: Dec 29, 1986Granted: Sep 5, 1989
Est. expiryDec 29, 2006(expired)· nominal 20-yr term from priority
Inventors:Richard Rosenfeld
15
PatentIndex Score
2
Cited by
1
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for envelope opener, as shown and described.
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