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Respirator with face seal multiple flexing region

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Assignee: 3M INNOVATIVE PROPERTIES COPriority: Sep 24, 2013Filed: Sep 24, 2013Granted: Jan 10, 2017
Est. expirySep 24, 2033(~7.2 yrs left)· nominal 20-yr term from priority
Inventors:William A. Mittelstadt
60
PatentIndex Score
10
Cited by
67
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a respirator with face seal multiple flexing region, as shown and described.

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