Patents by Inventor Ross E. Gibson

Ross E. Gibson 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).

  • Maze-type puzzle
    Patent number: 4015852
    Abstract: A puzzle includes a game board which is subdivided into a plurality of pre-designated areas. Each of the areas is bounded by an upstanding wall in which there is at least one opening. A plurality of string-like elements are connected at one end to first connecting means located in one of the areas and are adapted at the other ends to be detachably connected to respective ones of a plurality of second connecting means located separately in selected other areas.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: April 5, 1977
    Inventor: Ross E. Gibson