Patents by Inventor Merle T. Shelton

Merle T. Shelton 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).

  • Window blind control apparatus
    Patent number: 4979550
    Abstract: A window blind control apparatus is set forth wherein the apparatus enables selective control in the opening and closing of an associated window blind arrangement utilizing selectively a photo-electric cell, a radio frequency controller, or a manually displaceable slide switch for the opening and closing of the window blind unit that comprises a series of parallel slats.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: December 25, 1990
    Inventors: Richard G. Long, Merle T. Shelton