Patents by Inventor Anna L. Markisz-Spero

Anna L. Markisz-Spero 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: 4629194
    Abstract: A game apparatus in the form of a board game and method of playing same with sixty-four subsquares comprising a main square with a border around all four sides of the main square, two sides of the border at ninety degrees to one another having one designation and the other two sides at ninety degrees to each other having a different designation with eight circles being located outside the border on all four sides of the main square. Charge discs are placed in the circles and number discs are placed in the squares, the stated value of a number disc being increased, decreased or unchanged by its respective pair of charge discs.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: December 16, 1986
    Inventors: Louis A. Spero, Anna L. Markisz-Spero