USD345361SExpiredUtility
Headphone
Individually held — no corporate assignee on recordPriority: Jan 7, 1992Filed: Jan 7, 1992Granted: Mar 22, 1994
Est. expiryJan 7, 2012(expired)· nominal 20-yr term from priority
Inventors:Mark Grasso
52
PatentIndex Score
7
Cited by
11
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a headphone, as shown and described.
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