Patents by Inventor John J. Perrero

John J. Perrero 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: 5131849
    Abstract: A board apparatus is arranged for educational presentation of inter-relationship relative to atomic particles and their associated energy levels relative to interaction of such particles, wherein the board structure includes a central ferrous metallic base plate formed with a perimeter framework accommodating a plurality of ferrous metallic discs to simulate atomic particles such as electrons and their interaction relative to one another. A modification of the invention includes a dispenser housing mounted to a first side of the framework and a container housing mounted to a second side of the framework to provide for the respective dispensing of the discs and the storage of writing instruments.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: July 21, 1992
    Inventor: John J. Perrero