USD574072SActiveUtility

Room air purifier

89
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Oct 24, 2007Filed: Oct 24, 2007Granted: Jul 29, 2008
Est. expiryOct 24, 2027(~1.3 yrs left)· nominal 20-yr term from priority
Inventors:Casey L. CarlsonGlendon D. Kappel
89
PatentIndex Score
40
Cited by
13
References
1
Claims

Claims

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

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