Patents by Inventor Edward P. Spencer

Edward P. Spencer 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).

  • Reinforced wall-ironed container
    Patent number: 3951296
    Abstract: A wall-ironed container having annular reinforcing ribs projecting inwardly from the inside surface of the side walls, the ribs being spaced from the ends of the side walls and from each other, the outer surface of the side walls of the container being in the form of a cylinder.
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: April 20, 1976
    Assignee: National Steel Corporation
    Inventors: William D. Swanson, Edward P. Spencer