USD574646SActiveUtility

Chair backrest

74
Individually held — no corporate assignee on recordPriority: Sep 7, 2007Filed: Sep 7, 2007Granted: Aug 12, 2008
Est. expirySep 7, 2027(~1.1 yrs left)· nominal 20-yr term from priority
Inventors:Shu O Su
74
PatentIndex Score
19
Cited by
8
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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