USD328461SExpiredUtility

Headphone

94
Assignee: SONY CORPPriority: Sep 30, 1988Filed: Mar 24, 1989Granted: Aug 4, 1992
Est. expirySep 30, 2008(expired)· nominal 20-yr term from priority
Inventors:Fumitake DaidoKatsumi Yamatogi
94
PatentIndex Score
241
Cited by
4
References
1
Claims

Claims

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

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.