USD660622SActiveUtility

Chair backrest

72
Assignee: SU TUNG-HUAPriority: Jan 5, 2012Filed: Jan 5, 2012Granted: May 29, 2012
Est. expiryJan 5, 2032(~5.4 yrs left)· nominal 20-yr term from priority
Inventors:Tung-Hua Su
72
PatentIndex Score
17
Cited by
8
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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