USD754844SActiveUtility

Respirator mask

37
Assignee: 3M INNOVATIVE PROPERTIES COPriority: May 22, 2014Filed: May 22, 2014Granted: Apr 26, 2016
Est. expiryMay 22, 2034(~7.8 yrs left)· nominal 20-yr term from priority
Inventors:David M. BlombergMark W. Schulz
37
PatentIndex Score
2
Cited by
91
References
1
Claims

Claims

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

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