Patents by Inventor Mark Prucha

Mark Prucha 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).

  • Attachment for the enhanced measurement accuracy of a combination square
    Patent number: 5992034
    Abstract: An attachment for the enhanced measurement accuracy of a combination square is provided which consists of a horizontally elongated base of generally rectangular shape. A rectangular base indentation is positioned along the horizontal centerline of the base, and forms a plane that is parallel to the bottom surface of the base. The base indentation lateral walls are equidistant from the horizontal centerline of the base, and are of sufficient lateral distance to allow the handle lower contact surface of a combination square to have sufficient lateral clearance to slidably engage the base indentation and rest against the base indentation contact surface. The vertical depth of the base indentation provides sufficient vertical clearance for the handle upper contact surface to fit within the assembled device.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: November 30, 1999
    Inventors: Mark Prucha, Tom Zieloski