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United States Patent D428,988
Smart August 1, 2000

Mask cushion


The ornamental design for a mask cushion, as shown and described.
Inventors: Smart; Gregory Scott (Randwick, New South Wales, 3031, AU)
Appl. No.: D/101,862
Filed: March 12, 1999

Foreign Application Priority Data

Dec 09, 1998 [AU] 3923/98

Current U.S. Class: D24/110.1 ; D24/110.4; D24/110.5
Current International Class: 2902
Field of Search: D24/110.1,110.4,110.5 128/207.11,207.17,206.24,206.21,205.25,206.26,207.18,206.12,206.11,207.13,207.1

References Cited

U.S. Patent Documents
D118241 December 1939 Lehmberg
D293613 January 1988 Wingler
D334633 April 1993 Rudolph
D362061 September 1995 McGinnis et al.
D377089 December 1996 Starr et al.
2317608 April 1943 Heidbrink
2376871 May 1945 Fink
4328797 May 1982 Rollins, III et al.
4402316 September 1983 Gadberry
4803981 February 1989 Vickery
5265595 November 1993 Rudolph
5673690 October 1997 Tayebi et al.
5794617 August 1998 Brunell et al.
6035852 March 2000 Hoftman
Foreign Patent Documents
1039144 Jul., 1978 CA
0 386 605 A1 Sep., 1990 EP
0 634 186 A2 Jan., 1995 EP
WO 92/20395 Nov., 1992 WO

Other References

"Disposable Full Face Mask", Brochure by Respironics, Inc, Oct. 20, 1994., 2 pgs. .
Data Sheet Advertisements for new Rudolph nasal and mouth breathing face mask two-way non-rebreathing, 1995 Hans Rudolph, Inc. (691148-1), (691149-1). .
Data Sheet Advertisements for new Rudolph mouth breathing face mask two-way non-rebreathing, 1995 Hans Rudolph, Inc. (691150-1), (691151-1). .
Data Sheet Advertisements for new Rudolph anesthesia face mask silicone, non-conductive, translucent, 1995 Hans Rudolph, Inc. (691159-1)..

Primary Examiner: Simmons; Ian
Attorney, Agent or Firm: Gordon; David P. Jacobson; David S. Gallagher; Thomas A.


FIG. 1 is a top view;

FIG. 2 is a front perspective view;

FIG. 3 is a rear view;

FIG. 4 is a side view;

FIG. 5 is a rear perspective view;

FIG. 6 is a front view; and,

FIG. 7 is a bottom view.

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