Respirator support structure

Description

FIG. 1 is a perspective view, showing the new design for a respirator support structure;

FIG. 2 is a right side view thereof, the left side being a mirror image of the right side view;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is an rear view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof, showing the respirator support structure attached to a respirator mask body.

The broken line showing is included for the purpose of illustrating environmental structure and forms no part of the claimed design.

Claims

CLAIM The ornamental design for a respirator support structure, as shown and described.

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Inventors:	Mittelstadt; William A. (Woodbury, MN), Abel; Nathan A. (Minneapolis, MN)
Applicant:	Name City State Country Type Mittelstadt; William A. Abel; Nathan A. Woodbury Minneapolis MN MN US US
Assignee:	3M Innovative Properties Company (St. Paul, MN)
Appl. No.:	D/426,194
Filed:	July 2, 2012

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Current U.S. Class:	D24/110.1
Current International Class:	2902
Field of Search:	;D24/110.1-110.4 ;128/201.22,201.23,205.25,206.12,206.21,206.24,206.28,207.11,207.13,207.17

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References Cited [Referenced By]

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U.S. Patent Documents

D421299	February 2000	Brostrom et al.
D421801	March 2000	Brostrom et al.
D440301	April 2001	Fecteau
6338342	January 2002	Fecteau
D471627	March 2003	Mittelstadt
6536435	March 2003	Fecteau
D473937	April 2003	Fecteau
D518571	April 2006	Martin
D568986	May 2008	Holmquist-Brown
D569969	May 2008	Lin
D570474	June 2008	Lin
D582546	December 2008	Fujiura
D629885	December 2010	Skulley et al.
2002/0078953	June 2002	Fecteau

Foreign Patent Documents

	2073735		Oct 1981		GB

Primary Examiner: Simmons; Ian
Assistant Examiner: Shelton; Richelle
Attorney, Agent or Firm: Hanson; Karl G.