Patents by Inventor Francis P. Dunigan

Francis P. Dunigan 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: 4328413
    Abstract: Odometer having a readout of the light-emitting diode type for showing accurate mileage and having means for introducing a predetermined mileage and selecting an increasing or decreasing mode of operation.
    Type: Grant
    Filed: December 1, 1980
    Date of Patent: May 4, 1982
    Inventors: Richard J. O'Neil, Francis P. Dunigan