Patent ID: 8511017

Claim:
An interlocking building system, comprising: a first sheet, having a first end and a second end; a first hook-shaped extension, located at said first end of said first sheet, said first hook-shaped extension being the only extension at said first end; a second sheet having a third end and a fourth end; a second hook-shaped extension, located at a fourth end of said second sheet, said second hook-shaped extension being the only extension at said second end; a polyurethane layer; a support column, said support column being a square prism; wherein said first hook-shaped extension extends for a first length in line with said first sheet, then turns perpendicularly to said first sheet, with a second length shorter than the width of said polyurethane layer but equal to the length of said first length, then extends in line with said second sheet; wherein said second hook-shaped extension extends for a third length in line with said second sheet, then turns perpendicularly to said second sheet, with a fourth length shorter than the width of said polyurethane layer but equal to the length of said third length, then extends in line with said first sheet; wherein said support column exists in plane with said first sheet and said second sheet and anchors said first sheet and said second sheet in position via said first hook-shaped extension and said second hook-shaped extension.