USD732153SActiveUtility

Air filter

73
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Aug 16, 2013Filed: Aug 16, 2013Granted: Jun 16, 2015
Est. expiryAug 16, 2033(~7.1 yrs left)· nominal 20-yr term from priority
Inventors:Stephen M. SanockiChristopher K. EnstromGlen O. GregersonDaniel E. JohnsonAndrew R. Fox
73
PatentIndex Score
19
Cited by
45
References
1
Claims

Claims

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

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