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Filtering face-piece respirator support structure

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Assignee: 3M INNOVATIVE PROPERTIES COPriority: Sep 20, 2007Filed: Sep 20, 2007Granted: Dec 28, 2010
Est. expirySep 20, 2027(~1.2 yrs left)· nominal 20-yr term from priority
Inventors:Thomas G. SkulleyErik J. Johnson
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PatentIndex Score
11
Cited by
34
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a filtering face-piece respirator support structure, as shown and described.

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