Patents by Inventor John Grenga

John Grenga 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).

  • Universal support for vertical blinds and the like
    Patent number: 4291738
    Abstract: Disclosed is a universal support structure for the suspension of vertical louver-type Venetian blinds, draperies and hanging elements such as room dividers and the like. The system of this invention incorporates a novel support track and carrier system for the suspension and oscillation of such louvers. The track is notable in the fact that it is substantially as wide as the width of the louvers being supported and that the louver carriers are contained within the track.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: September 29, 1981
    Inventors: John Grenga, Samuel Frydman