Patents by Inventor Donald Eerdmans

Donald Eerdmans 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).

  • Paddle boat
    Patent number: 5381752
    Abstract: A paddle boat includes wheels at the sides of the boat. The paddle wheels have vanes and a central rim. The rim is used to propel the boat on land. The boat has seats in front of and behind peddles used to drive the wheels. The peddles have front and back faces which upwardly extend toward one another.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: January 17, 1995
    Inventor: Donald Eerdmans
  • Boat
    Patent number: D292202
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: October 6, 1987
    Inventor: Donald Eerdmans
  • Paddle boat
    Patent number: D372013
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: July 23, 1996
    Inventor: Donald Eerdmans