USD573818SActiveUtility

Chair backrest

42
Individually held — no corporate assignee on recordPriority: Nov 29, 2007Filed: Nov 29, 2007Granted: Jul 29, 2008
Est. expiryNov 29, 2027(~1.3 yrs left)· nominal 20-yr term from priority
Inventors:Shu O Su
42
PatentIndex Score
4
Cited by
4
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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