USD831182SActiveUtility

Air filter

57
Assignee: 3M INNOVATIVE PROPERTIES COPriority: Jun 20, 2016Filed: Jun 20, 2016Granted: Oct 16, 2018
Est. expiryJun 20, 2036(~9.9 yrs left)· nominal 20-yr term from priority
Inventors:Glen O. GregersonJonathan M. Lise
57
PatentIndex Score
7
Cited by
17
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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