Patent ID: 6122881
Filing Date: 2000-09-26
Classification: E04B

Abstract:
A building block system comprising:first and second extruded interlocking building blocks, each of said first and second blocks having a length and being substantially identical to each other in appearance;said first and second building blocks each having a front facing surface, a back surface opposite said front facing surface, a top surface and a bottom surface opposite said top surface;an elongated tongue member extending substantially the total length of each of said first and second building blocks along the bottom surface of each of said blocks;an indented top surface groove located on the top surfaces of said first and second building blocks, the top groove of said first building block being sized and shaped to complementarily receive the elongated tongue members of said second building block when placed therein;said indented top surface of second building block being sized and shaped to complementarily receive the elongated tongue members of said first building block when placed therein;each of said first and second building blocks having a mortar receiving grooves indented within their respective top surfaces grooves, said mortar receiving grooves extending in the same direction as the top groove of the respective block;an inner cavity in said first and second building blocks extending the length of said blocks in the same direction as said tongue and groove in each block.