USD532890SExpiredUtility

Air purifier

27
Assignee: TIAN ZHAOSHENGPriority: Jun 14, 2005Filed: Jun 14, 2005Granted: Nov 28, 2006
Est. expiryJun 14, 2025(expired)· nominal 20-yr term from priority
Inventors:Zhaosheng Tian
27
PatentIndex Score
4
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for an air purifier, as shown.

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