Patents by Inventor Ronald P. Baker

Ronald P. Baker 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).

  • Rotatable transparent disc second hand for watch
    Patent number: 3934405
    Abstract: A timepiece is disclosed which has a single transparent disc coaxially mounted within a case. The disc which carries a reference mark serves as a rotatable second hand. The disc is mounted on a central spindle in a unique manner for optimum balance and trouble-free operation.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: January 27, 1976
    Inventor: Ronald P. Baker