Patents Assigned to Concrete Stone & Tile Corporation
  • Cobble stone kit
    Patent number: 5163777
    Abstract: A kit of cobble stone elements of varied shapes which when fitted together into a close-fitting fan-shaped composite of which a plurality of the fan shaped composites symbolic of a fish scale form a close-fitting integrated repetitive design of unique and novel appearance.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: November 17, 1992
    Assignee: Concrete Stone & Tile Corporation
    Inventors: Ronald G. Krueger, Arthur A. LaBouseur
  • Paving stone unit
    Patent number: D348739
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: July 12, 1994
    Assignee: Concrete Stone and Tile Corporation
    Inventors: Ronald G. Krueger, Arthur A. Labouseur
  • Paving stone
    Patent number: D349967
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: August 23, 1994
    Assignee: Concrete Stone and Tile Corporation
    Inventors: Ronald G. Krueger, Arthur A. Labouseur
  • Paving stone
    Patent number: D352559
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: November 15, 1994
    Assignee: Concrete Stone and Tile Corporation
    Inventors: Ronald G. Krueger, Arthur A. Labouseur