Title:
Protective mask
United States Patent D311789


Inventors:
Villarreal, Richard (2926 S. Mabbett Ave., Milwaukee, WI, 53207)
Villarreal, Yvonne A. (2926 S. Mabbett Ave., Milwaukee, WI, 53207)
Application Number:
07/240042
Publication Date:
10/30/1990
Filing Date:
09/02/1988
Primary Class:
Field of Search:
D29/6-9, 128/204.26, 128/201.19, 128/207.12
View Patent Images:
US Patent References:
4756308Protective breathing mask having a speaking diaphragm for close communication and an electroacoustic transducer system for indirect speech transmission from inside the maskJuly, 1988Ryback128/207.12
4440163Emergency escape breathing apparatusApril, 1984Spergel128/207.12
3180333Gas mask communication systemApril, 1965Lewis128/201.19
2888920Face maskJune, 1959Mollering et al.D29/9
2620794RespiratorDecember, 1952GeorgeD29/9
2164330Fully molded gas mask facepieceJuly, 1939Katz et al.128/201.19



Primary Examiner:
CHIN, KAY H
Attorney, Agent or Firm:
JERRY KEARNS,PATENT AGENT (SUITE 269 2101 CRYSTAL PLAZA ARCADE, ARLINGTON, VA, 22202, US)
Claims:
1. The ornamental design for a protective mask, as shown and described.

Description:

FIG. 1 is a front elevational view of a protective mask showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.