Patents Represented by Attorney, Agent or Law Firm Gerald E. Hespas
  • Building blocks
    Patent number: 6591569
    Abstract: A building block for use in construction, comprises a first and second side wall. First and second end walls join the first side wall to the second side wall at the respective ends thereof. A top surface and a bottom surface are also provided. The top and bottom surfaces are profiled to interfit with one another. The block is characterized in that each end wall is substantially Z-shaped.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: July 15, 2003
    Inventor: Tony Azar