Patents Assigned to S & M Block System of U.S. Corporation
  • Mortar-less interlocking building block system
    Patent number: 4314431
    Abstract: A set of interlocking building blocks capable of being assembled with each other forming wall structures without requiring mortar or any other binder. The set consists of four types of blocks and one lintel rib which are capable of forming wall structures and openings in said structures that are adapted to cooperate in locking relationship to prevent transverse or longitudinal movement of the blocks relative to one another.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: February 9, 1982
    Assignee: S & M Block System of U.S. Corporation
    Inventor: Ernest A. Rabassa