Patents by Inventor Christine S. Springman

Christine S. Springman 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).

  • Paperboard video cassette housing
    Patent number: 4883176
    Abstract: A housing for enclosing the inner operating mechanism of a limited use, composite, video cassete. The housing is formed from a one-piece blank of foldable paperboard and has opposed top and bottom side walls interconnected by a front wall and a pair of end walls, that form a box-like enclosure, and has spring tabs formed from material of one of the side walls for engagement with portions of the inner operating mechanism.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: November 28, 1989
    Assignee: Container Corporation of America
    Inventors: Joseph J. Hart, Christine S. Springman