Patents by Inventor Carl Kordewick

Carl Kordewick 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).

  • Security grille
    Patent number: 4000590
    Abstract: A grille assembly readily mountable with a window frame for securing a window against unauthorized entry. The grille includes a plurality of horizontal members, each of which has longitudinally spaced, vertical openings. A plurality of vertical bars extend into the vertical openings of the horizontal members, and concealed mounting assemblies mount the horizontal members with the window frame.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: January 4, 1977
    Inventor: Carl Kordewick