Patents by Inventor Narendrakumar M. Patel

Narendrakumar M. Patel 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).

  • Puzzle game
    Patent number: 4802673
    Abstract: A puzzle is provided with a frame having a generally rectangular opening therein. The rectangular opening has a major dimension of four times a selected unit of measurement, and a minor dimension of three times the selected unit of measurement. Movably disposed within the rectangular opening are four substantially identical square puzzle pieces each of which has sides equal in length to the selected unit of measurement. The puzzle further comprises three substantially identical rectangular puzzle pieces each of which has minor sides equal to the selected unit of measurement and major sides equal to twice the selected unit of measurement. Selected pieces may be provided with indicia so that various selected patterns may be provided as the starting and ending points for different puzzle games.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: February 7, 1989
    Inventor: Narendrakumar M. Patel
  • Puzzle game
    Patent number: 4732388
    Abstract: A puzzle is provided with a frame having a generally rectangular opening therein. The rectangular opening has a major dimension of four times a selected unit of measurement, and a minor dimension of three times the selected unit of measurement. Movably disposed within the rectangular opening are four substantially identical square puzzle pieces each of which has sides equal in length to the selected unit of measurement. The puzzle further comprises three substantially identical rectangular puzzle pieces each of which has minor sides equal to the selected unit of measurement and major sides equal to twice the selected unit of measurement.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: March 22, 1988
    Inventor: Narendrakumar M. Patel
  • Lettering scale
    Patent number: 4262428
    Abstract: A lettering scale for regulating the width and spacing between letters, which is used in conjunction with a straight edge guide is provided, and includes a generally planar, transparent member having first and second straight edges disposed in perpendicular relationship. A plurality of equally spaced parallel, visible guidelines are provided on the transparent member and are disposed in parallel relationship with the first straight edge. The spacing between the first straight edge and the nearest visible guideline of the array is equal to the spacing between each guideline of the array. After the drawing of horizontal guidelines, the width and spacing between letters can be regulated by the drawing of guide points, using the lettering scale.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: April 21, 1981
    Inventor: Narendrakumar M. Patel