Patents by Inventor William D. Heavner

William D. Heavner 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).

  • Stackable container
    Patent number: 4134533
    Abstract: A shipping container having stacking tabs projecting upwardly from certain walls thereof for receipt within openings in lower portions of similar containers.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: January 16, 1979
    Assignee: Container Corporation of America
    Inventor: William D. Heavner