Patent ID: 8286402

Claim:
A system of interlocking building blocks for use in constructing habitable structures comprising: a flat sheet folded into a building block and having: first and second generally right triangular panels, each of said first and second generally right triangular panels being bounded by base, opposite, and diagonal edges, said first and second generally right triangular panels being spaced apart and generally edge joined to mating edges of base, opposite, and diagonal generally rectangular side panels, respectively, each of said generally rectangular side panels having approximately the same width, said generally rectangular side panels having lengths that are approximately coextensive with said edges of said first and second generally right triangular panels to which they are joined, wherein said building block has a generally rectangular elevation form, a generally right triangular plan form, and a periphery generally defined by said respective generally rectangular side panels; and alternating male and female fastener elements integral with said flat sheet and arrayed generally around said periphery generally along each of said mating edges, said male fastener elements on opposed edges of the same said generally rectangular side panel being offset generally diagonally from one another, and each said male fastener element being aligned generally normally with said female fastener element on an opposed edge of the same said generally rectangular side panel, and an end flap projecting from said generally rectangular side panel to thereby extend said length of said generally rectangular side panel, said end flap being adapted to being adherently affixed to a surface of a generally rectangular side panel in an adjacent similar copy of said building block, said male fastener element on said building block adapted to being lockingly inserted into said female fastening element on said adjacent similar copy of said building block.