Patents by Inventor Alexander Sheppa

Alexander Sheppa 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).

  • Mini arched bridge
    Patent number: 4839935
    Abstract: A mini arched bridge is provided with at leat two hollow pans having integral depending sides and ends forming a unitary structure, each side and end of the pans having comparable holes, a plurality of fasteners passing through the holes in adjacent ends of said at least two pans whereby said pans become a single arched member and placing the ends remote from the connection into the earth on opposite sides of the arc to be bridged.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: June 20, 1989
    Assignee: Commercial Shearing, Inc.
    Inventors: Robert A. Calcagni, Alexander Sheppa