USD668481SActiveUtility

Chair back frame

47
Assignee: HSUAN-CHIN TSAIPriority: Jul 14, 2011Filed: Jul 14, 2011Granted: Oct 9, 2012
Est. expiryJul 14, 2031(~5 yrs left)· nominal 20-yr term from priority
Inventors:Tsai Hsuan-Chin
47
PatentIndex Score
6
Cited by
7
References
1
Claims

Claims

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

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