The ornamental design for a petbowl, as shown and described.
FIG. 1 is a top perspective view of the pet bowl.
FIG. 2 is a top plan view of the pet bowl.
FIG. 3 is a bottom plan view of the pet bowl.
FIG. 4 is a front view of the pet bowl.
FIG. 5 is a rear elevation of the pet bowl.
FIG. 6 is an alternate top perspective view of the pet bowl.
FIG. 7 is a further alternate top perspective view of the pet bowl.
FIG. 8 is a bottom perspective view of the pet bowl.
FIG. 9 is an alternate bottom perspective view of the pet bowl; and,
FIG. 10 is a further alternate bottom perspective view of the pet bowl.
The broken lines in FIGS. 3, and 8-10 depict surface markings and are illustrative of environment and not intended to form a part of the claimed design.