USD324523SExpiredUtility

Headphones

61
Individually held — no corporate assignee on recordPriority: Sep 29, 1988Filed: Sep 29, 1988Granted: Mar 10, 1992
Est. expirySep 29, 2008(expired)· nominal 20-yr term from priority
Inventors:Regina M. HughesR. Irwin Hughes
61
PatentIndex Score
16
Cited by
5
References
1
Claims

Claims

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

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