Respirator mask face seal
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The subject matter disclosed herein is related to subject matter disclosed in PCT Patent Application No. PCT/US14/50847, which is incorporated herein by reference in its entirety.
The dash-dot-dash broken line separating the upper portion and the lower portion of the respirator mask face seal represents the bounds of the claimed design and forms no part thereof. The broken line showing of the respirator mask illustrates the environment and forms no part of the claimed design. All other broken lines in the drawings illustrate portions of the respirator mask face seal that form no part of the claimed design.
Claims
The ornamental design for a respirator mask face seal, as shown and described.
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Type: Grant
Filed: Jan 30, 2015
Date of Patent: Jul 12, 2016
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Garry J. Walker (Stockton-on-Tees), Peter Masters (Blyth)
Primary Examiner: Barbara Fox
Assistant Examiner: Lilyana Bekic
Application Number: 29/516,276