Patents by Inventor Duane C. Lundeen

Duane C. Lundeen 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).

  • Cassette display and holder
    Patent number: 4771888
    Abstract: A standard cassette display and storage holder consisting of a rigid back panel with a cassette holding area and a separate larger graphics area. The panel has a flange that carries cassette identification information and it also seals the open part of the cassette.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: September 20, 1988
    Inventor: Duane C. Lundeen