USRE40318EExpiredUtilityPatentIndex 74

Headphone

Assignee: SONY CORPPriority: Jun 29, 2001Filed: May 21, 2004Granted: May 20, 2008

Est. expiryJun 29, 2021(expired)· nominal 20-yr term from priority

H04R 5/0335

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Claims

exact text as granted — not AI-modified

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

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