Patents by Inventor Leon M. Stern

Leon M. Stern 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: 5328173
    Abstract: A device for the random selection of letters, and a game utilizing same, is disclosed which comprises a container with at least a transparent top wall. The container has an inner cavity which is separated by a plate which has a plurality of holes therethrough. The plate separates the inner chamber into a lower chamber and an upper chamber. The inner chamber is filled with a fluid. A plurality of balls, which are filled with a solid or a liquid substance, or a gas, or air, which substance, gas or air has a lower specific gravity than the specific gravity of the fluid, are submerged in the fluid. The balls may have letters ascribed thereon, or they may be blank. When it is desired to randomly select a set of letters, the device is shaken and/or agitated and then placed in an upright position whereupon a ball will at least partially enter each of the holes in the plate thereby providing for a random selection of balls having letters or blanks.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: July 12, 1994
    Inventor: Leon M. Stern