Patents by Inventor Timothy Kalivas

Timothy Kalivas 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).

  • Changeable numerical characters for a display sign
    Patent number: 5388356
    Abstract: A numeric display has a background and seven panels positioned to form a stylized FIG. 8. The seven panels include four vertical panels, each revoluably mounted about a horizontal axle, and three horizontal panels each revoluably mounted about a vertical axis. The axis of each of said seven bars pass substantially through the geometric center the panel. The panels each have a front face and a back face. The front face of the panels contrasts optically with the background. The rear face optically melds with the background.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: February 14, 1995
    Inventor: Timothy Kalivas