The ornamental design for a gaspump handle, as shown and described.
FIG. 1 is a perspective front right view of the ornamental design for a gas pump handle;
FIG. 2 is a perspective front left view of the ornamental design for a gas pump handle;
FIG. 3 is a side view of the ornamental design for a gas pump handle;
FIG. 4 is a front view of the ornamental design for a gas pump handle;
FIG. 5 is a back view of the ornamental design for a gas pump handle;
FIG. 6 is a bottom view of the ornamental design for a gas pump handle; and,
FIG. 7 is a top view of the ornamental design for a gas pump handle.
The broken lines in the drawings depict portion of the gas pump handle that form no part of the claimed design. The lighter weight random pattern broken lines illustrate contours of the gas pump handle and are not intended to depict surface pattern.