Patents by Inventor Charles K. Durio

Charles K. Durio 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).

  • Parking scale
    Patent number: 4951397
    Abstract: A parking scale for use by architects, planners and engineers comprising indicia establishing one-to-one correspondence with parking spaces of conventional width when drawn to a scale used to prepare a conventional scale drawing.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: August 28, 1990
    Inventor: Charles K. Durio