USD510671SExpiredUtility

Backrest frame of a chair

Assignee: WU YAO-CHUANPriority: Nov 25, 2003Filed: Nov 25, 2003Granted: Oct 18, 2005
Est. expiryNov 25, 2023(expired)· nominal 20-yr term from priority
Inventors:Yao-Chuan Wu
84
PatentIndex Score
28
Cited by
7
References
1
Claims

Claims

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

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