Patents by Inventor Giancarlo Stefanini

Giancarlo Stefanini 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: 4667960
    Abstract: A maze game including upper and lower discs which are turnable with respect to one another and which have arrays of wall elements at their inner surfaces for defining paths through the maze in different relative angular positions of the discs. At least the upper disc is transparent and a metallic playing piece can be manipued through the maze using a wand having a magnetic tip which is drawn across the upper surface of the top disc.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: May 26, 1987
    Inventor: Giancarlo Stefanini
  • Patent number: 4570935
    Abstract: A game in the form of a maze is disclosed. The maze is formed by a series of concentrically arranged annular members defining a series of spaced gates through which a playing piece can be moved, and intervening blind compartments. The annular members can be turned relative to one another to vary the configuration of the maze. In a preferred embodiment, this is achieved by one of a set of different keys, each of which can be used to move the members through the required angular amounts to produce a different maze.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: February 18, 1986
    Inventor: Giancarlo Stefanini