The ornamental design for a frontbumper for a vehicle, as shown and described.
FIG. 1 is a front right perspective view of a front bumper for a vehicle according to the present invention.
FIG. 2 is a front left perspective view of the front bumper shown in FIG. 1.
FIG. 3 is a rear left perspective view thereof.
FIG. 4 is a rear right perspective view thereof.
FIG. 5 is a front view thereof.
FIG. 6 is a rear view thereof.
FIG. 7 is a left side view thereof.
FIG. 8 is a right side view thereof.
FIG. 9 is a top view thereof.
FIG. 10 is a bottom view thereof; and,
FIG. 11 is a top view of the front bumper shown in FIGS. 1-10, but with the front bumper mounted on a vehicle, and the rest of the vehicle shown in de-emphasized and half-tone portions so as to illustrate environmental structure. These portions form no part of the claimed invention. More particularly, in FIG. 10, the inventive front bumper is generally shown within the outer broken line, and the elements shown outside the outer broken line form no part of the claimed invention, but are instead included to show environmental aspects thereof. FIG. 10 also shows two internal broken lines which correspond to upper and lower portions of the grille, and are not part of the inventive front bumper.