Patents by Inventor Joan Javits Zeeman

Joan Javits Zeeman 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).

  • Alphabet cube puzzle
    Patent number: 4037846
    Abstract: A cubic puzzle especially suitable for teaching the alphabet to children as well as serving as an adult puzzle. Puzzle members formed in the shape of alphabetic and numeric representations are releasably mounted on each surface of a cube. The alphabetic and numeric representations are inter-fitted to have a specific position on the cube surface and effect a puzzle on each surface.
    Type: Grant
    Filed: January 27, 1976
    Date of Patent: July 26, 1977
    Inventor: Joan Javits Zeeman