The ornamental design for a window vent, as shown.
FIG. 1 is a perspective view of a window vent showing my new design, it
being understood that the fragmentary portion of the automobile that is
shown in broken lines is for illustrative purposes only;
FIG. 2 is an enlarged side elevational view thereof;
FIG. 3 is a greatly enlarged sectional view taken on the lines 3--3 of FIG.
2; and
FIG. 4 is a greatly enlarged fragmentary elevational view taken in the
direction of the lines 4--4 of FIG. 3.