Patents by Inventor Philip M. Vaughan, Jr.

Philip M. Vaughan, Jr. 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).

  • Hidden passage ball puzzle
    Patent number: 4509753
    Abstract: The Pyramid Puzzle is a toy puzzle incorporating a ball hidden inside a pyramid. By chance rotation of the various levels of the pyramid the ball drops through the levels of the pyramid. When the ball falls into a blind (partial) hole, the pyramid must be manipulated to reorient the ball so that it may fall freely down to the next level. The puzzle is solved by retrieving the ball in a sliding tray at the base of the pyramid.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: April 9, 1985
    Inventor: Philip M. Vaughan, Jr.