Patents by Inventor Leon G. Lenkoff

Leon G. Lenkoff 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: 4586714
    Abstract: A puzzle game and a method of manufacturing the same including separate geometric segments of a total picture image removably fastened in jumbled fashion in a first defined area and a visibly marked grid in a second defined area forming the same geometrically shaped segments as in the first area whereby the jumbled segments can be transferred from the first area to the second area to form a correct picture image within the visible grid.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: May 6, 1986
    Assignee: Stry-Lenkoff Co.
    Inventors: Leon G. Lenkoff, Roger J. Lenkoff, Patrick J. Garry
  • Patent number: 4514177
    Abstract: A game device including first and second areas with the first area having a number of visible questions, each having a visible identifying indicia associated therewith and at least two visible answers with invisibly marked designations indicating correctness of the answer of the question responded to and a second defined area having random chance selection means to indicate the question to be responded to by a player.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: April 30, 1985
    Assignee: Stry-Lenkoff Co.
    Inventor: Leon G. Lenkoff
  • Patent number: 4212393
    Abstract: The present invention relates to a "magic" coloring package combination consisting of magic pictures and a felt tip marker pen filled with water or containing a water solution therein. These magic or invisible coloring pictures consist of printed papers which have various figures outlined in a dark color, e.g. black, wherein the space within the figure is printed with a uniform water insoluble ink including therein one or more latent water soluble coloring materials which may be printed in a pattern of dots. When the insoluble imprints of ink are contacted by the felt tip, the water in the pen is deposited on the paper and releases the latent coloring material, thereby spreading it on the adjacent locality of the paper. This magic coloring combination is designed to be used by a small child on a trip, e.g. airplane ride or a car, where water is either unavailable and/or would be too messy to utilize.
    Type: Grant
    Filed: December 29, 1978
    Date of Patent: July 15, 1980
    Inventor: Leon G. Lenkoff