We claim the ornamental design for a load stop, as shown and described.
FIG. 1 is a perspective view of a decorative load stop;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a cross-sectional view showing the interior side of the rear of the design;
FIG. 9 is a cross-sectional view showing the interior side of the front of the design; and,
FIG. 10 is an alternate perspective of the design.
The cross sectional views of FIG. 8 and FIG. 9 have been included to show the contours of the surface of interior sides of the design; the upper internal structure does not form a part of the claimed design. The broken lines in FIG. 10 are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design.