USD521136SExpiredUtility

Upright air purifier

43
Assignee: A I AIR TECHNOLOGY INCPriority: Dec 27, 2004Filed: Dec 27, 2004Granted: May 16, 2006
Est. expiryDec 27, 2024(expired)· nominal 20-yr term from priority
Inventors:Dan TsengDavid N. KayeLing Ling
43
PatentIndex Score
8
Cited by
6
References
1
Claims

Claims

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

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