Patents by Inventor Rudolf Johan Koreska

Rudolf Johan Koreska 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).

  • Profile rail
    Patent number: 4035979
    Abstract: An extruded rail comprises a body having a longitudinally extending flat side surface, an L-sectioned channel extending longitudinally through the rail and having one limb parallel to said side surface, and another limb extending from a junction with an end region of said one limb, at an angle to said side surface and to that side of said one limb remote from said side surface, various elements for connecting such rails are also illustrated.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: July 19, 1977
    Inventor: Rudolf Johan Koreska