Patents by Inventor Linda C. Rothlisberger

Linda C. Rothlisberger 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: 5445390
    Abstract: A mathematical Board Game for a plurality of players has a rectangular game board with a plurality of card stations or chambers arranged in a matrix of horizontal and vertical rows. The card chambers include a start card chamber in each corner of the board and a plurality of problem card chambers in a perimeter of the board between the start card chambers. A plurality of answer card chambers on the board are surrounded by the start card chambers and the problem card chambers. A start card is removably placed in each of the start card chambers. A problem card is removably placed in each one the problem card chambers. There is a different mathematical problem on each problem card. An answer card is removably placed in each one the answer card chambers. There is an answer to one of the mathematical problems on each of the answer cards.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: August 29, 1995
    Inventors: Kris R. Dutton, Linda C. Rothlisberger