USD641575SActiveUtility
Three-piece chair backrest frame
Est. expirySep 3, 2030(~4.1 yrs left)· nominal 20-yr term from priority
Inventors:Tsai Hsuan-Chin
41
PatentIndex Score
4
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a three-piece chair backrest frame, as shown and described.
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