Respirator mask having an exhalation port

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Description

FIG. 1 is a perspective view showing the new design for a respirator mask having an exhalation port;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof, the left side being a mirror image thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the respirator mask having an exhalation port that form no part of the claimed design.

Claims

The ornamental design for a respirator mask having an exhalation port, as shown and described.

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Patent History
Patent number: D767116
Type: Grant
Filed: Feb 27, 2015
Date of Patent: Sep 20, 2016
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: David M. Blomberg (Lino Lakes, MN), William A. Mittelstadt (Woodbury, MN)
Primary Examiner: Barbara Fox
Assistant Examiner: Lilyana Bekic
Application Number: 29/518,804
Classifications
Current U.S. Class: Mask (D24/110.1)