Respirator mask having a face seal flexing region
Latest 3M Innovative Properties Company Patents:
Description
broken lines in the drawing illustrate portions of the respirator mask having a face seal flexing region which form no part of the claimed design.
Claims
The ornamental design for a respirator mask having a face seal flexing region, as shown and described.
Referenced Cited
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Foreign Patent Documents
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Patent History
Patent number: D787660
Type: Grant
Filed: May 22, 2014
Date of Patent: May 23, 2017
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: William A. Mittelstadt (Woodbury, MN), David R. Stein (White Bear Lake, MN), Charlie Wood (Minneapolis, MN)
Primary Examiner: Deanna L Pratt
Assistant Examiner: Lilyana Bekic
Application Number: 29/491,546
Type: Grant
Filed: May 22, 2014
Date of Patent: May 23, 2017
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: William A. Mittelstadt (Woodbury, MN), David R. Stein (White Bear Lake, MN), Charlie Wood (Minneapolis, MN)
Primary Examiner: Deanna L Pratt
Assistant Examiner: Lilyana Bekic
Application Number: 29/491,546
Classifications
Current U.S. Class:
Mask (D24/110.1)