FIG. 1 is an isometric view of a first embodiment of the nibbed pattern of floor mat backing of new my design;

FIG. 2 is a plan view thereof;

FIG. 3 is a plan view of a second embodiment of the nibbed pattern of floor mat backing of my design, the top left perspective view thereof being substantially identical to FIG. 1; and,

FIG. 4 is a plan view of a third embodiment of the nibbed pattern of floor mat backing of my design, the perspective view thereof being substantialy the same as FIG. 1, the only difference being the inclusion of a logo at the center of the pattern.

In the drawings, the broken line showing of surface nibs and a logo is for illustrative purposes only and forms no part of the claimed design.