Patents by Inventor Eric Ivan Hay

Eric Ivan Hay 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: 4021039
    Abstract: A miniature tennis game apparatus includes a small simulated tennis court, a tennis ball suspended by a wire from an overhead mast and at least one hand manipulatable figure on each side of the simulated tennis court. The tennis ball is situated at one end of a pivotal lever arm the other end of which is counterbalanced by an adjustable counterweight. By adjusting the counterweight and the arm coupling, it is possible to change the speed and trajectory of the ball. The ball may be hit from one side of the court to the other through the use of the tennis figures which are manipulated by a rotatable push rod.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: May 3, 1977
    Inventor: Eric Ivan Hay