Patents by Inventor Salvatore Pulejo

Salvatore Pulejo 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: 4128243
    Abstract: A magic square puzzle including a main piece which is square in plan view and four auxiliary rectangular pieces each having a square cross section. The top surface of the main piece is divided into four equal square shaped quadrante each provided with a numerical indicium. Three longitudinal surfaces of each rectangular piece is divided into three square shaped segments each having a numerical indicium therein. The object of the puzzle is to arrange the rectangular pieces around the periphery of the main piece in a effort to achieve a magic square solution.
    Type: Grant
    Filed: May 27, 1977
    Date of Patent: December 5, 1978
    Inventor: Salvatore Pulejo