FIG. 1 is a side perspective view of a first embodiment of a utility knife blade showing my new design;
FIG. 2 is a side elevational view of the utility knife blade of FIG. 1;
FIG. 3 is a top plan view of the utility knife blade of FIG. 1;
FIG. 4 is a bottom plan view of the utility knife blade of FIG. 1;
FIG. 5 is an end elevational view of the utility knife blade of FIG. 1;
FIG. 6 is a side elevational view of the opposite side the utility knife blade of FIG. 2;
FIG. 7 is a side perspective view of a second embodiment of a utility knife blade showing my new design;
FIG. 8 is a side elevational view of the utility knife blade of FIG. 7;
FIG. 9 is a top plan view of the utility knife blade of FIG. 7;
FIG. 10 is a bottom plan view of the utility knife blade of FIG. 7;
FIG. 11 is an end elevational view of the utility knife blade of FIG. 7;
FIG. 12 is a side elevational view of the opposite side the utility knife blade of FIG. 8;
FIG. 13 is a side perspective view of a third embodiment of a utility knife blade showing my new design;
FIG. 14 is a side elevational view of the utility knife blade of FIG. 13;
FIG. 15 is a top plan view of the utility knife blade of FIG. 13;
FIG. 16 is a bottom plan view of the utility knife blade of FIG. 13;
FIG. 17 is an end elevational view of the utility knife blade of FIG. 13;
FIG. 18 is a side elevational view of the opposite side the utility knife blade of FIG. 14;
FIG. 19 is a side perspective view of a fourth embodiment of a utility knife blade showing my new design;
FIG. 20 is a side elevational view of the utility knife blade of FIG. 19;
FIG. 21 is a top plan view of the utility knife blade of FIG. 19;
FIG. 22 is a bottom plan view of the utility knife blade of FIG. 19;
FIG. 23 is an end elevational view of the utility knife blade of FIG. 19; and,
FIG. 24 is a side elevational view of the opposite side the utility knife blade of FIG. 20.
The broken lines in the drawings show structure that is not part of the claimed design, but rather show the environment in which the design is associated, or show portions of the article in which the design is embodied or applied to that are not considered part of the claimed design.