Patents by Inventor Donald A. Addison

Donald A. Addison 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).

  • Composite closure member
    Patent number: 4238047
    Abstract: A reusable, composite, container closure having a central panel formed of sheet material and a rim formed of molded thermoplastic material.
    Type: Grant
    Filed: October 4, 1979
    Date of Patent: December 9, 1980
    Assignee: Container Corporation of America
    Inventors: Charles R. Helms, Donald A. Addison