Patents by Inventor John Michael Charles Ridden

John Michael Charles Ridden 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).

  • Bag closure clip
    Patent number: 3997943
    Abstract: A bag closure clip fabricated from an elongated double ply plastic strap, one end of which serves as a loop hanger, the closure being in the form of a noose made by passing the looped end of the strap through an aperture in the opposite strap end. The clip can replace the wire closure commonly employed for closing and carrying plastic bags containing blasting agents.
    Type: Grant
    Filed: January 23, 1976
    Date of Patent: December 21, 1976
    Assignee: Canadian Industries, Ltd.
    Inventors: Elwyn David Jones, John Michael Charles Ridden