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 front view of the paver brick of FIG. 1;
FIG. 5 is a rear view of the paver brick of FIG. 1;
FIG. 6 is a left side view of the paver brick of FIG. 1; and,
FIG. 7 is a top view of the paver brick of FIG. 1.
The right side view of the paver brick is a mirror image of the left side view shown in FIG. 6 and is 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.