Patents by Inventor M. L. Green

M. L. Green has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4376596
    Abstract: A plurality of sections of portable roadway are removably interconnected for use during periods of adverse weather conditions during which soil conditions are such that it is impossible to build a permanent road, or when the economics are such that a temporary road is advantageous. Each section consists of a hardwood frame which is connected to and supports a plywood surface. At the front and rear of each section, a transverse stiffening bar extends through and laterally to the side of the section. Connecting members are attached between the free ends of these stiffening bars. In the center of each section, a lifting bar is disposed to aid in removal and placement of the sections in an expeditious manner.
    Type: Grant
    Filed: April 16, 1980
    Date of Patent: March 15, 1983
    Inventor: M. L. Green