The ornamental design for a carseatcover for a bench seat, as shown and described.
FIG. 1 is a perspective view of the back of a car seat cover for a bench seat constructed in accordance with the present invention, where the car seat cover has a front, sides, straps positioned to retain the car seat cover on a bench seat, and openings positioned such that seat belts and head rests may extend therethrough, where the openings may be edged in Velcro such that they may be closed when not in use;
FIG. 2 is a section view of a car seat cover for a bench seat as shown in FIG. 1, as installed on a bench seat. The bench seat shown with dashed lines forms no part of the claimed design.
FIG. 3 is a front view of a car seat cover for a bench seat as shown in FIG. 1;
FIG. 4 is a side view of a car seat cover for a bench seat as shown in FIG. 1;
FIG. 5 is a top view of a car seat cover for a bench seat as shown in FIG. 1;
FIG. 6 is a back view of a car seat cover for a bench seat as shown in FIG. 1; and,
FIG. 7 is a bottom view of a car seat cover for a bench seat as shown in FIG. 1.
Dashed lines surrounding the seat belt flaps and openings in FIGS. 1 and 3 represent stitching, and form part of the claimed design.