Respirator mask having a communication grille Patent Grant Blomberg , et al. October 20, 2 [3M INNOVATIVE PROPERTIES COMPANY]

Respirator mask having a communication grille

Blomberg , et al. October 20, 2

Patent Grant D741475

U.S. patent number D741,475 [Application Number D/518,797] was granted by the patent office on 2015-10-20 for respirator mask having a communication grille. This patent grant is currently assigned to 3M Innovation Properties Company. The grantee listed for this patent is 3M INNOVATIVE PROPERTIES COMPANY. Invention is credited to David M. Blomberg, Mark W. Schulz, Charlie Wood.

United States Patent	D741,475
Blomberg , et al.	October 20, 2015

**Please see images for: ( Certificate of Correction ) **

Respirator mask having a communication grille

Claims

CLAIM The ornamental design for a respirator mask having a communication grille, as shown and described.

Inventors:

Blomberg; David M. (Lino Lakes, MN), Schulz; Mark W. (Minneapolis, MN), Wood; Charlie (Minneapolis, MN)

Applicant:

Name	City	State	Country	Type
3M INNOVATIVE PROPERTIES COMPANY	St. Paul	MN	US

Assignee:

3M Innovation Properties Company (St. Paul, MN)

Appl. No.:

D/518,797

Filed:

February 27, 2015

Current U.S. Class:	D24/110.1
Current International Class:	2902
Field of Search:	;D24/110.1-110.4,110.6,162 ;D29/105,107,108,110 ;D14/137,160,163,169,170,188,194 ;D23/332,335,355,356,412

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Other References

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Primary Examiner: Pratt; Deanna L
Assistant Examiner: Bekic; Lilyana
Attorney, Agent or Firm: Olson; Peter L.

Description

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

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 a communication grille which form no part of the claimed design.

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