Patents by Inventor Donald D. Dunbar

Donald D. Dunbar 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).

  • Motor driven shade lowering and raising mechanism for atrium walls
    Patent number: 4683933
    Abstract: A motor driven device for raising and lowering shades on glass-enclosed atrium walls, including a self-leveling feature which corrects for uneven shades and permits shades of different lengths to be operated from the same motor and shaft.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: August 4, 1987
    Assignee: Inside Outfitters, Inc.
    Inventor: Donald D. Dunbar