USD553886SActiveUtility

Chair backrest

63
Assignee: SU TUNG-HUAPriority: Mar 25, 2007Filed: Mar 25, 2007Granted: Oct 30, 2007
Est. expiryMar 25, 2027(~0.6 yrs left)· nominal 20-yr term from priority
Inventors:Tung-Hua Su
63
PatentIndex Score
12
Cited by
7
References
1
Claims

Claims

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

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