USD540081SActiveUtility

Chair backrest

79
Assignee: SU TUNG-HUAPriority: Aug 18, 2006Filed: Aug 18, 2006Granted: Apr 10, 2007
Est. expiryAug 18, 2026(~0 yrs left)· nominal 20-yr term from priority
Inventors:Tung-Hua Su
79
PatentIndex Score
23
Cited by
13
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a chair backrest, as shown.

Join the waitlist — get patent alerts

Track USD540081S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.