Patents by Inventor Karl F. Kastner

Karl F. Kastner 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).

  • Grease extraction cartridge for kitchen exhaust ventilator
    Patent number: 4103676
    Abstract: A grease extraction cartridge for a kitchen exhaust ventilator is removably disposed along a flow path through the ventilator for normally forming a fire wall, while being readily removable from the ventilator to permit access to the interior of the ventilator for purposes of cleaning and maintaining the device.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: August 1, 1978
    Inventor: Karl F. Kastner