Respirator cartridge connector

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Description

FIG. 1 is a front perspective view showing the new design for a respirator cartridge connector.

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof, the bottom view being a mirror image thereof;

FIG. 5 is a right view thereof; and,

FIG. 6 is a left view thereof.

The broken lines are included for the purpose of illustrating structure that is not part of the claimed design.

Claims

The ornamental design for a respirator cartridge connector, as shown and described.

Referenced Cited
U.S. Patent Documents
4753640 June 28, 1988 Nichols et al.
D310585 September 11, 1990 Newcomb
D340186 October 12, 1993 Rand et al.
D352959 November 29, 1994 Wolff
D493520 July 27, 2004 Bertinetti et al.
D585540 January 27, 2009 Lithgow et al.
D633199 February 22, 2011 MacKay et al.
D675730 February 5, 2013 Lithgow et al.
D683014 May 21, 2013 Hu et al.
Patent History
Patent number: D747470
Type: Grant
Filed: Feb 1, 2013
Date of Patent: Jan 12, 2016
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: David M. Blomberg (Woodbury, MN)
Primary Examiner: David Muller
Application Number: 29/444,698
Classifications
Current U.S. Class: Element Or Attachment (19) (D24/127)