Patents by Inventor Eric B. Bown

Eric B. Bown 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).

  • Circular photographic slide tray
    Patent number: 4026645
    Abstract: A circular tray for photographic slide projectors wherein the tray is provided with slide holders that are capable of being repositioned, together with the slide thereof, in any position circumferentially of the tray.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: May 31, 1977
    Assignee: Information Design Corporation of America
    Inventors: Eric B. Bown, Harold P. Mueller, III, Elton Robertson