Patent ID: 9677271
Date: 2017-06-13
CPC Classifications: E04C

Claim:
1. A concrete step unit comprising: a six sided body having three pairs of opposed rectangular faces; a first pair of opposed faces being riser faces, a second pair of opposed faces being a bottom face and top step face, and a third pair of opposed faces being first and second side faces; the two opposed riser faces each having an irregular three dimensional pattern with both projections and reliefs in a direction extending from the top step face to the bottom face and in a direction extending from the first side face to the second side face to provide two aesthetic faces on the unit, the two opposed riser faces having patterns that are mirror images of each other such that when two of the units are placed with their patterned faces aligned and in contact, the three dimensional patterns on the opposed riser faces nest to minimize the space between the adjacent edges of the units, the three dimensional patterns on the opposed riser faces having a shape that prevents movement between the opposed riser faces both laterally and vertically relative to a plane perpendicular to the bottom face; and the bottom face being straight, flat, and without a projection extending therefrom.