USD300133SExpiredUtility

Headphone

Assignee: SONY CORPPriority: Jan 30, 1985Filed: Jul 23, 1985Granted: Mar 7, 1989

Est. expiryJan 30, 2005(expired)· nominal 20-yr term from priority

PatentIndex Score

120

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for a headphone, as shown.

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