USD660621SActiveUtility

Chair backrest

66
Assignee: SU TUNG-HUAPriority: Nov 4, 2011Filed: Nov 4, 2011Granted: May 29, 2012
Est. expiryNov 4, 2031(~5.2 yrs left)· nominal 20-yr term from priority
Inventors:Tung-Hua Su
66
PatentIndex Score
13
Cited by
12
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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