A new, original, ornamental design for a petfeeder, as shown and described.
FIG. 1 is a perspective view of a pet feeder showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a top plan view thereof.
The broken lines in the figures illustrate portions of the pet feeder that form no part of the claimed design. The broken line immediately adjacent to the shaded unshaded areas are boundary lines and form no part of the claimed design.