Patents by Inventor Nina Coefield

Nina Coefield 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).

  • Crossword puzzle game
    Patent number: 4179126
    Abstract: A competitive game played with a crossword puzzle, at least two writing instruments capable of filling in the crossword puzzle in different colors, and a timer. The contestants take turns filling in the crossword puzzle, each contestant using a different one of the writing instruments and the lengths of their turns being measured by the timer. Values are assigned to each square in the crossword puzzle, and the winner of the game is determined at the end of play by adding up the values assigned to each square filled in correctly in each color.
    Type: Grant
    Filed: March 9, 1978
    Date of Patent: December 18, 1979
    Inventor: Nina Coefield
  • Crossword puzzle game
    Patent number: 4106773
    Abstract: A competitive game played with a crossword puzzle, at least two writing instruments capable of filling in the crossword puzzle in different colors, and a timer. The contestants take turns filling in the crossword puzzle, each contestant using a different one of the writing instruments and the lengths of their turns being measured by the timer. Values are assigned to each square in the crossword puzzle, and the winner of the game is determined at the end of play by adding up the values assigned to each square filled in correctly in each color.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: August 15, 1978
    Inventor: Nina Coefield