USD680215SActiveUtility

Air filtration mask

45
Individually held — no corporate assignee on recordPriority: Oct 3, 2010Filed: Oct 3, 2010Granted: Apr 16, 2013
Est. expiryOct 3, 2030(~4.2 yrs left)· nominal 20-yr term from priority
Inventors:Cecil E. Campbell
45
PatentIndex Score
9
Cited by
10
References
1
Claims

Claims

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

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