Patents by Inventor William Giakas

William Giakas 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: 4065132
    Abstract: A maze puzzle comprising an outer cylinder on the inner surface of which is a trackway forming a maze which is solved by rotating and pushing an inner cylinder having a projection which slides in the trackway. In another version, the outer cylinder is segmented so that two or more segments can be interconnected randomly so that a different maze path is formed with each combination of segments. In still another version, using either the segmented or unsegmented outer cylinders, but dispensing with the inner cylinder, the puzzle is solved by causing a magnetically attractable ball to move along the maze as a magnetic slider is moved on the outer surface of the cylinder.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: December 27, 1977
    Inventor: William Giakas