USD318669SExpiredUtility

Headphone

99
Assignee: SONY CORPPriority: Oct 17, 1988Filed: Mar 17, 1989Granted: Jul 30, 1991
Est. expiryOct 17, 2008(expired)· nominal 20-yr term from priority
Inventors:Takao Nakayama
99
PatentIndex Score
119
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a headphone, as shown and described.

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