USD683172SActiveUtility

Chair backrest

77
Assignee: SU TUNG-HUAPriority: Sep 14, 2012Filed: Sep 14, 2012Granted: May 28, 2013
Est. expirySep 14, 2032(~6.1 yrs left)· nominal 20-yr term from priority
Inventors:Tung-Hua Su
77
PatentIndex Score
21
Cited by
9
References
1
Claims

Claims

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

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