Mask

FIG. 1 is a perspective view of a first embodiment of a mask showing my new design;

FIG. 2 is a front elevational view thereof in which the profile lines 8 - 8 and 9 - 9 herein form no part of the claimed design;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a cross-sectional view along line 8 - 8 shown in FIG. 2 ;

FIG. 9 is a cross-sectional view along line 9 - 9 shown in FIG. 2 ;

FIG. 10 is a perspective view thereof in condition of use, where the design is adapted to fit a lower portion of a human's face;

FIG. 11 is a perspective view thereof in condition of use, where the design is adapted to fit an upper portion of the human's face;

FIG. 12 is a perspective view of a second embodiment of a mask showing my new design;

FIG. 13 is a front elevational view thereof in which the profile lines 19 - 19 and 20 - 20 herein form no part of the claimed design;

FIG. 14 is a rear elevational view thereof;

FIG. 15 is a left elevational view thereof;

FIG. 16 is a right elevational view thereof;

FIG. 17 is a top plan view thereof;

FIG. 18 is a bottom plan view thereof;

FIG. 19 is a cross-sectional view along line 19 - 19 shown in FIG. 13 ;

FIG. 20 is a cross-sectional view along line 20 - 20 shown in FIG. 13 ;

FIG. 21 is a perspective view thereof in condition of use, where the design is adapted to fit a lower portion of a human's face;

FIG. 22 is a perspective view thereof in condition of use, where the design is adapted to fit an upper portion of the human's face;

FIG. 23 is a perspective view of a third embodiment of a mask showing my new design;

FIG. 24 is a front elevational view thereof in which the profile lines 30 - 30 and 31 - 31 herein form no part of the claimed design;

FIG. 25 is a rear elevational view thereof;

FIG. 26 is a left elevational view thereof;

FIG. 27 is a right elevational view thereof;

FIG. 28 is a top plan view thereof;

FIG. 29 is a bottom plan view thereof;

FIG. 30 is a cross-sectional view along line 30 - 30 shown in FIG. 24 ;

FIG. 31 is a cross-sectional view along line 31 - 31 shown in FIG. 24 ;

FIG. 32 is a perspective view thereof in condition of use, where the design is adapted to fit a lower portion of a human's face; and,

FIG. 33 is a perspective view thereof in condition of use, where the design is adapted to fit an upper portion of the human's face.

The design is adapted to be optionally fitted to an upper portion of a human's face or to a lower portion of the human's face.

The dash-dot line broken line in the drawings illustrates section cut lines; the evenly broken lines disclose unclaimed environment. The broken lines form no part of the claimed design.