Patents by Inventor Jeffrey A. Chontos

Jeffrey A. Chontos 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).

  • Combination protractor/chalk line device
    Patent number: 6345448
    Abstract: In a preferred embodiment, a combination protractor/chalk line device, including: a housing; a chalk line string disposed in the housing and withdrawable from the housing at a first end of the housing; a manually graspable handle loosely attached to the housing; a protractor disposed on a side of the housing; and the combination protractor/chalk line being arranged such that, when the chalk line string is withdrawn from the housing and held taut and the handle is grasped, the protractor will indicate an angle from horizontal defined by the chalk line string.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: February 12, 2002
    Inventor: Jeffrey A. Chontos