FIG. 1 is front and top perspective view of a first embodiment of a hamburger pet treat according to the new design;
FIG. 2 is a back and bottom perspective view of the embodiment of FIG. 1;
FIG. 3 is a front elevation view of the embodiment of FIG. 1, the back elevation, left side and right side views being a mirror image of the front elevation view;
FIG. 4 is a top plan view of the embodiment of FIG. 1;
FIG. 5 is a bottom plan view of the embodiment of FIG. 1;
FIG. 6 is front and top perspective view of a second embodiment of a hamburger pet treat according to the new design;
FIG. 7 is a back and bottom perspective view of the embodiment of FIG. 6;
FIG. 8 is a front elevation view of the embodiment of FIG. 6, the back elevation, left side and right side views being a mirror image of the front elevation view;
FIG. 9 is a top plan view of the embodiment of FIG. 6;
FIG. 10 is a bottom plan view of the embodiment of FIG. 6;
FIG. 11 is front and top perspective view of a third embodiment of a hamburger pet treat according to the new design;
FIG. 12 is a back and bottom perspective view of the embodiment of FIG. 11;
FIG. 13 is a front elevation view of the embodiment of FIG. 11, the back elevation, left side and right side views being a mirror image of the front elevation view;
FIG. 14 is a top plan view of the embodiment of FIG. 11;
FIG. 15 is a bottom plan view of the embodiment of FIG. 11;
FIG. 16 is front and top perspective view of a fourth embodiment of a hamburger pet treat according to the new design;
FIG. 17 is a back and bottom perspective view of the embodiment of FIG. 16;
FIG. 18 is a front elevation view of the embodiment of FIG. 16, the back elevation, left side and right side views being a mirror image of the front elevation view;
FIG. 19 is a top plan view of the embodiment of FIG. 16; and,
FIG. 20 is a bottom plan view of the embodiment of FIG. 16.
The broken lines shown in FIGS. 6-8, 12, 15-18 and 20 illustrate portions of the hamburger pet treat that form no part of the claimed design.