USD272904SExpiredUtility

Earphone

Assignee: SONY CORPPriority: Feb 17, 1981Filed: Aug 17, 1981Granted: Mar 6, 1984

Est. expiryFeb 17, 2001(expired)· nominal 20-yr term from priority

PatentIndex Score

113

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for an earphone, as shown.

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