USD286399SExpiredUtility
Speaker diaphragm
Individually held — no corporate assignee on recordPriority: Jun 2, 1983Filed: Jun 2, 1983Granted: Oct 28, 1986
Est. expiryJun 2, 2003(expired)· nominal 20-yr term from priority
Inventors:Erazm A. Willy
91
PatentIndex Score
46
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design of a speaker diaphragm, as shown and described.
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