Patents by Inventor Clyde Crosby

Clyde Crosby 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).

  • Plastic sheet stamping apparatus
    Patent number: 4147484
    Abstract: A continuous, moving length of substantially rigid thermoplastic synthetic resin material is marked with a hot die at spaced intervals along its length. The hot die is mounted for movement parallel to the direction of movement of the sheet from the sheet forming apparatus, and is actuated in coordination with a sheet cutter which cuts the continuous length into individual sheets so that a die mark is provided at the desired position on each sheet cut from the continuous length.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: April 3, 1979
    Assignee: Gladwin, Inc.
    Inventor: Clyde Crosby