Patents Represented by Attorney Frommer Lawrence & Haug LLP A. Thomas S. Safford

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  • Roadway structure made from rigid materials
    Patent number: 6158920
    Abstract: A roadway structure comprising from top to bottom:a top layer,at least one rigid foundation layer having a high modulus of rigidity and supporting the top layer,the ground, or an untreated material or a damaged roadway, andin addition particularly having an under layer beneath and adhered to the foundation layer, which under layer has a thickness such that it constitutes a support with a smooth and flat surface for the foundation layer laid thereon.
    Type: Grant
    Filed: March 28, 1997
    Date of Patent: December 12, 2000
    Assignee: Total Raffinage Distribution S.A.
    Inventor: Michel Malot