USD544080SExpiredUtility

Room air purifier

81
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Jun 21, 2005Filed: Jun 21, 2005Granted: Jun 5, 2007
Est. expiryJun 21, 2025(expired)· nominal 20-yr term from priority
Inventors:Casey L. Carlson
81
PatentIndex Score
27
Cited by
6
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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