Patents Assigned to Smartboard Building Products Inc.
  • Cementitious structural panel and method of its manufacture
    Patent number: 6176920
    Abstract: The present invention relates to a cementitious structural panel and its method of manufacture. The method of manufacture involves encapsulating a top and bottom layer of porous reinforcing material with a cementitious mixture by vibration. The structural panel may be coated with a layer of waterproof material.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 23, 2001
    Assignee: Smartboard Building Products Inc.
    Inventors: Patrick B. Murphy, George Wypych