Patent ID: 6907704

Claim:
An interlocking modular block system for mortarless wall assembly, comprising: a plurality of blocks laid up in courses in a staggered relationship, wherein three different block configurations are provided, a stretcher block and a corner block having lengths at least one and a half times the width, and a half block having the same width of the stretcher block and the corner block and a length up to half the length of the stretcher block and the corner block, each of said blocks comprising: a pair of spaced, parallel, upright sidewalls having flat top and bottom surfaces, said sidewalls having block-interlocking means; a first transverse end wall extending between said sidewalls spaced from a second end of said blocks; and a second transverse end wall extending between said sidewalls spaced from a second end of said blocks; wherein, in the corner block, said sidewalls have block-interlocking means on opposed ends thereof.