Patents by Inventor John T. Kern

John T. Kern 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).

  • Patent number: 4387545
    Abstract: The present invention relates to a panel assembly for use as a door or as a section of a wall and provides a preformed fixed frame accurately defining an aperture for an in-fill panel. The fixed frame is located in a main framework which is constructed around the fixed frame. Subsequently selected in-fill panel or panels can be located in the fixed frame and completion frames are used to secure the in-fill panels in the fixed frame to complete the door or wall section.
    Type: Grant
    Filed: July 23, 1980
    Date of Patent: June 14, 1983
    Inventor: John T. Kern