Patent ID: 7540684

Claim:
A tile for an interlocking rubber mat, comprising: a tile body having an upper surface, a lower surface, and a rectangular peripheral edge having four sides; the upper surface being imprinted with a repeating paving stone pattern of a square adjacent to an octagon, each square having four sides of equal length, each octagon having every second side equal to the sides of the square; and a series of projections extending beyond at least one of the sides of the peripheral edge, the space between the projections being adapted to receive the projections of an adjacent tile, each projection including a projecting square and a projecting octagon, wherein the projecting square of each projection is adjacent a peripheral octagon of the at least one of the sides of the peripheral edge and the projecting octagon is adjacent a remote side of the projecting square opposite the peripheral octagon, each peripheral octagon on the at least one of the sides having an associated projection, the series of projections extending beyond each of the sides of the peripheral edge, wherein exactly two opposed corners of the peripheral edge are octagons, each of these corner octagons having two projections, one of the projections having an additional square and octagon that form a right angle, the right angle having the first projecting octagon at the apex of the right angle, the further square and octagon being parallel to the other projection of the corner octagon.