USD331057SExpiredUtility

Headphone

Assignee: SONY CORPPriority: Jan 11, 1990Filed: Jun 6, 1990Granted: Nov 17, 1992

Est. expiryJan 11, 2010(expired)· nominal 20-yr term from priority

PatentIndex Score

101

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for a headphone, as shown and described.

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