USD661136SActiveUtility

Chair backrest

Assignee: SU TUNG-HUAPriority: Jul 8, 2010Filed: Jul 8, 2010Granted: Jun 5, 2012
Est. expiryJul 8, 2030(~3.9 yrs left)· nominal 20-yr term from priority
Inventors:Tung-Hua Su
79
PatentIndex Score
24
Cited by
13
References
1
Claims

Claims

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

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