Patents by Inventor Chryl Light

Chryl Light 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).

  • Protractor apparatus
    Patent number: 8191272
    Abstract: An improved protractor with an adjustable narrow arm comprising, in combination a flat, generally planar body having protractor shape, including an angle indicating scale with protruding scale elements in a curved row, the marker arm pivotally carried by the body to be swung successively over the scale elements, the scale elements spaced apart sufficiently to frictionally maintain the marker in selected angle indicating positions relative to said body.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: June 5, 2012
    Inventors: Chryl Light, Roberta J. Guarnieri