Dustpan

The design consists of the visual features of shape, ornamentation and pattern of the DUSTPAN shown in the drawings. FIG. 1 is a top, front, left perspective view of a DUSTPAN showing our new design; FIG. 2 is an enlarged top, front left perspective view thereof; FIG. 3 is a front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top view thereof; FIG. 8 is a bottom view thereof; FIG. 9 is an enlarged, top, front, left perspective view thereof; FIG. 10 is a front view thereof; FIG. 11 is a rear view thereof; FIG. 12 is a left side view thereof; FIG. 13 is a right side view thereof; FIG. 14 is a top view thereof; and FIG. 15 is a bottom view thereof. In FIG. 1, the handle portion shown in broken lines represents one view of an environmental feature which is not part of the design. The remainder of the broken lines shown in the drawings represent unclaimed subject matter and form no part of the claimed design.