The ornamental design for a concretepaverslab, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a top view of a concrete paver slab;
FIG. 2 is one side view thereof, each of the other three side views being identical thereto; and,
FIG. 3 is a perspective view thereof viewed from above one corner, each of the other three perspective views above the other three corners being identical thereto.
The dash-dot line depicts the bounds of the claim.