Patents by Inventor Edward D. Jansen

Edward D. Jansen 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).

  • Patent number: 5392548
    Abstract: In a photographic slide mount, a pair of pin locks are included to lock the position of the film. The pin locks are aligned with sprocket holes along the lateral edges of an inserted film transparency and extend therethrough to secure the position of the film in the slide mount. The pin locks are tapered and include recessed corners and a sloped second surface to facilitate their placement through the sprocket holes of the film.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: February 28, 1995
    Assignee: Pakon, Inc.
    Inventors: James A. Truc, Robert D. Brown, Edward D. Jansen