Patents by Inventor Frederick C. Ferguson

Frederick C. Ferguson 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).

  • Propeller lock for marine engine
    Patent number: D484388
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: December 30, 2003
    Assignee: FFN, Inc.
    Inventors: Robert J. Nassie, Frederick C. Ferguson