Patents by Inventor Michael L. Bourgoine

Michael L. Bourgoine 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).

  • Electronic survey target
    Patent number: 3972622
    Abstract: A target for acquiring a swept light beam in which four light detectors arranged in a row are connected to operate respective illumination devices and also to a logic network which operates an audible signal only upon activation of all four or exclusively the center two detectors. The target includes a housing which attaches to and is movable upon a grade rod.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: August 3, 1976
    Assignee: New Hampshire Ball Bearings, Inc.
    Inventors: Mark T. Mason, Michael L. Bourgoine