Patents by Inventor John M. Druce

John M. Druce 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: 5551700
    Abstract: The invention is a pack of playing cards used for playing an educational game comprising a plurality of cards. The cards are divided into several sets of cards. Each set depicts a different face of a multifaced die, wherein all the cards in one set have the same die face, while cards in different sets have different die faces. The cards are also divided into several suits. Each card has a front face and a rear face. Disposed on the front face of each card is at least one question, an answer to the question, and the depiction of a die-face. Disposed on the rear face of each card is a depiction of a suit and a number. The cards are numbered sequentially in each suit. The cards may be used to replace dice in aboard game which normally uses dice to move playing piece along a game board track.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: September 3, 1996
    Inventors: Harry F. Druce, John M. Druce