USD539406SExpiredUtility

Air purifier

71
Assignee: WANG CHI-HSIANGPriority: Sep 12, 2005Filed: Sep 12, 2005Granted: Mar 27, 2007
Est. expirySep 12, 2025(expired)· nominal 20-yr term from priority
Inventors:Chi-Hsiang Wang
71
PatentIndex Score
18
Cited by
5
References
1
Claims

Claims

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

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