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Filtering face-piece respirator support structure

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Assignee: JOHNSON ERIK JPriority: Sep 20, 2007Filed: Sep 20, 2007Granted: Apr 10, 2012
Est. expirySep 20, 2027(~1.2 yrs left)· nominal 20-yr term from priority
Inventors:Erik J. JohnsonThomas G. SkulleyMichael K. Domroese
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CLAIM 
     
       The ornamental design for a filtering face-piece respirator support structure, as shown and described.

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