The ornamental design for a pallet with concaveloadsupport surface, as shown and described.
FIG. 1 is an isometric view of a pallet with concave load support surface showing our design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side view thereof, the left side view being a mirror image of FIG. 4;
FIG. 5 is a front elevation view thereof, the rear elevation view being a mirror image of FIG. 5;
FIG. 6 is a cross-sectional view therethrough taken along a central plane extending perpendicular to the view shown in FIG. 2 and from top to bottom of the page; and,
FIG. 7 is a cross-sectional view therethrough taken along a central plane extending perpendicular to the view shown in FIG. 2 and from left to right of the page.
The broken lines in the figures illustrate environmental elements which form no part of the claimed design.