Patents by Inventor John F. Lister

John F. Lister 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: 5156446
    Abstract: A barricade includes an illumination housing mounting an illumination lens, with the housing including a threaded bore. The barricade structure includes a barricade bore aligned with the threaded bore to receive a threaded locking rod therethrough. The threaded locking rod includes an enlarged head member mounted integrally to the upper distal end of the locking rod, with a handle bar mounted to the head at an oblique angle, wherein the handle is received through a locking loop directed through a further bore directed through a leg portion of the barricade structure to prevent loss of the illumination housing and lens organization.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: October 20, 1992
    Inventor: John F. Lister