Patents by Inventor Michael F. Eisenhart

Michael F. Eisenhart 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: 4979754
    Abstract: A game that is suitable for use on a beach or on similar loose granular soil wherein a ball is hit back and forth over a net. The net is suspended between two hollow supports over a foldable ground sheet that delineates part of the playing region. The sheet combines with the loose soil to furnish a rebounding surface for the ball. Each support has a wide base and an upright post that are filled with sand or water to provide additional weight to the supports to hold a net suspended therebetween in a taut condition over the ground sheet. The net can be folded and stored in one support along with other game related equipment which the ground sheet can be similarly stored in the other support. Handles are mounted upon each support to provide for ease of transportation.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: December 25, 1990
    Inventor: Michael F. Eisenhart