Respiratory mask

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Description

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

FIG. 2 is a front view thereof.

FIG. 3 is a top elevational view thereof.

FIG. 4 is a bottom elevational view thereof.

FIG. 5 is a rear elevational view; and,

FIG. 6 is a side elevational view. The left side elevational view is the same as the right side elevational view.

The broken lines showing in FIGS. 1-6 are for illustrative purposes only and forms no part of the claimed design.

Claims

The ornamental design for a respiratory mask, as shown and described.

Referenced Cited
U.S. Patent Documents
D326540 May 26, 1992 Scholey
2362382 November 1944 Lehmberg
5012805 May 7, 1991 Muckerheide
5701893 December 30, 1997 Kern et al.
5934275 August 10, 1999 Gazzara
Foreign Patent Documents
388638 March 1933 GB
871661 June 1961 GB
2103491A February 1983 GB
WO 96/28216 September 1996 WO
WO 96/28217 September 1996 WO
WO 97/32493 September 1997 WO
WO 97/32494 September 1997 WO
Other references
  • Product Literature: “Glendale Respiratory Protection,” Glendale Optical Company, Inc.
  • Product Literature: “Delta Disposable Respirators,” Racal Health & Safety, Inc.
  • Product Literature: “Racal® N95 Respirator & Delta® N95 Respirator,” Racal Health & Safety, Inc., (1995).
Patent History
Patent number: D448472
Type: Grant
Filed: Feb 17, 1999
Date of Patent: Sep 25, 2001
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: Daniel T. Chen (St. Paul, MN)
Primary Examiner: Ian Simmons
Attorney, Agent or Law Firms: Karl G. Hanson, James A. Rogers
Application Number: 29/100,707
Classifications
Current U.S. Class: Mask (D24/110.1)
International Classification: 2902;