Patents by Inventor Shonan Date

Shonan Date 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).

  • See saw exercise vehicle
    Patent number: 4779882
    Abstract: A recreational and exercise cycle characterized by a propulsion system which derives its transmission force from the coordinated rowing action of the occupant's body weight, arm force, and foot-leg action comprising rotatable cranks, treadle and seat levers connected to and cranks, and a handle bar-power lever combination connected to a seat.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: October 25, 1988
    Inventor: Shonan Date
  • See saw exercise vehicle
    Patent number: 4664400
    Abstract: A recreational and exercise cycle characterized by a propulsion system which derives it transmission force from the coordinated rowing action of the occupant's body weight, arm force, and foot-leg action comprising rotatable cranks, treadle and seat levers connected to and cranks, and a handle bar-power lever combination connected to a seat.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: May 12, 1987
    Inventor: Shonan Date