Disposable protective mask
FIG. 1 is a perspective view of a disposable protective mask showing my new design.
FIG. 2 is a top plan view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a rear elevational view thereof;
FIG. 8 is a perspective view of a second embodiment of a disposable protective mask showing my new design, the sole difference from the first embodiment being in the addition of horizontal strips along the lower sides thereof;
FIG. 9 is a right side elevational view of FIG. 8;
FIG. 10 is a left side elevational view of FIG. 8;
FIG. 11 is a perspective view of a third embodiment of a disposable protective mask showing my new design, the sole difference from the first embodiment being in the rear surface thereof;
FIG. 12 is a top plan view of FIG. 11;
FIG. 13 is a bottom plan view of FIG. 11;
FIG. 14 is a perspective view of a fourth embodiment of a disposable protective mask showing my new design;
FIG. 15 is a right side elevational view of FIG. 14; and
FIG. 16 is a left side elevational view of FIG. 14.
D181887 | January 1958 | Stuart |
1690764 | November 1928 | Altbuch |
2448021 | August 1948 | De Grazia |
4411023 | October 25, 1983 | Pinson |
Type: Grant
Filed: Feb 24, 1984
Date of Patent: Sep 2, 1986
Inventor: Sarah C. McElfresh (Wayne, PA)
Primary Examiner: James M. Gandy
Assistant Examiner: Kay H. Chin
Law Firm: Benasutti and Murray
Application Number: 6/583,122