Patents by Inventor David D. Francis

David D. Francis 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: 4410182
    Abstract: A gameboard comprises a dice rolling surface surrounded by a decorative rim. On the edges of the surface are integrally mounted one set of numerical indicia implicit in playing the game and a set of movable beads for keeping score. Only a pair of dice are removably held in a compartment along one edge. Thus, the entire board is fashioned for storing by hanging as a picture on the wall. The indicia used in playing the game comprises in a preferred embodiment a set of cubes mounted eccentrically on a rod to have two stable pivot positions displaying respectively the indicia and masking it. The gameboard is adapted for arithmetic education and entertainment by players of all ages. It includes features for stabilizing the aforesaid indicia and scoring means to prevent accidental misplacement but being changeable by manual force.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: October 18, 1983
    Inventor: David D. Francis