Patent
   D742504
Priority
Feb 27 2015
Filed
Feb 27 2015
Issued
Nov 03 2015
Expiry
Nov 03 2029
Assg.orig
Entity
unknown
1
153
n/a
The ornamental design for a respirator mask, as shown and described.

FIG. 1 is a perspective view showing the new design for a respirator mask;

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 which form no part of the claimed design.

Mittelstadt, William A., Blomberg, David M.

Patent Priority Assignee Title
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///
Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 27 20153M Innovative Properties Company(assignment on the face of the patent)
Mar 25 2015MITTELSTADT, WILLIAM A 3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0353200380 pdf
Mar 30 2015BLOMBERG, DAVID M 3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0353200380 pdf
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