Title:
Nasal mask
United States Patent D333015


Inventors:
Farmer, Robert B. (Boulder, CO)
John St., Scott R. (Golden, CO)
Application Number:
07/801175
Publication Date:
02/02/1993
Filing Date:
12/02/1991
Assignee:
Lifecare International, Inc. (Lafayette, CO)
Primary Class:
Field of Search:
D29/6-9, D21/236, 128/207.14, 128/207.17, 128/207.11, 128/205.24, 128/206.24, 128/206.23
View Patent Images:
US Patent References:
5143061Supplemental seal for oxygen maskSeptember, 1992Kaimer128/206.24
4637387Breathing apparatusJanuary, 1987Hall128/205.24
4601287Heated survival face maskJuly, 1986Royce, Jr.128/206.23
4573463Breathing maskMarch, 1986Hall128/205.24
2858828RespiratorNovember, 1958MathesonD29/7



Other References:
Drawing (FIGS. 1-6) of a prior art mask of Mr. Andrew Mitchell (circa 1990).
Primary Examiner:
CHIN, KAY H
Attorney, Agent or Firm:
DORR, CARSON, SLOAN & PETERSON (3010 EAST 6TH AVENUE, DENVER, CO, 80206, US)
Claims:
1. The ornamental design for a nasal mask, as shown and described.

Description:

FIG. 1 is a perspective view of a nasal mask showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a bottom plan view thereof.