The ornamental design for a paverbrick, as shown and described.
FIG. 1 is a perspective view of a bottom of a paver brick;
FIG. 2 is a perspective view of a top of the paver brick of FIG. 1;
FIG. 3 is a bottom view of the paver brick of FIG. 1;
FIG. 4 is a left side view of the paver brick of FIG. 1;
FIG. 5 is a top view of the paver brick of FIG. 1; and,
FIG. 6 is a front view of the paver brick of FIG. 1.
The right side view and the rear view of the paver brick are mirror images of the left side view shown in FIG. 4 and the front view shown in FIG. 6, respectively, and are not shown. The shading shown in the figures merely aids in the understanding of the scope of the claim and is not part of the claim.