Patents by Inventor James K. Rinker

James K. Rinker 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).

  • Three dimensional jigsaw puzzle
    Patent number: 4469331
    Abstract: A three dimensional jigsaw comprised of a plurality of single-layered and multi-layered interlocking puzzle pieces which combine to form, when the puzzle is assembled, a plurality of superimposed, concentric planer layers of differing surface area is disclosed. When the puzzle is properly assembled, a continuous homogenous pictoral illustration is displayed on the surface of each visable planar layer of the puzzle.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: September 4, 1984
    Inventor: James K. Rinker