USD539578SExpiredUtility

Backrest

54
Assignee: CHEN HSIN-CHIEHPriority: Jul 1, 2005Filed: Jul 1, 2005Granted: Apr 3, 2007
Est. expiryJul 1, 2025(expired)· nominal 20-yr term from priority
Inventors:Hsin-Chieh Chen
54
PatentIndex Score
11
Cited by
14
References
1
Claims

Claims

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

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