Patents by Inventor Stephen K. Atwater

Stephen K. Atwater 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: 4232932
    Abstract: The present invention is an improved kaleidoscopic toy which has no moving parts and which provides a plurality of reproduceable optical shapes and patterns. The improved kaleidoscopic toy is a cube having six inner sidewalls, each of which has a mirrored surface with a plurality of transparent areas which are of a variety of shapes and which are colored with a stain glass paint of any one of a variety of colors. The cube is formed from six identical flat, square-shaped pieces of a transparent material, either plastic or glass. A first layer of mirror backing paint is applied to the outer sidewall of each of the six identical flat, square-shaped pieces and is interrupted only by the plurality of transparent areas of the mirrored surface. A second layer of dark paint is applied over the first layer. The transparent areas of the mirrored surface are formed by using a variety of cut-out shapes as masks when the layer of mirror backing paint is placed on the outer sidewalls of the cube.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: November 11, 1980
    Inventors: Stephen K. Atwater, Joseph Wolfson