Patents by Inventor Keith William Chirgwin

Keith William Chirgwin 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: 5931482
    Abstract: A child safety device used to restrict a young child and provide protection against injury that occurs from the popular construction of a modern shopping cart. A safety device that can be attached to the conventional shopping cart to prevent a child from injuring his or her digits in the openings that exist in modern shopping carts. The safety device is easy to manufacture and readily adaptable to a variety of shopping carts that are presently in use in retail settings. A child safety device that is economical to child-proof existing shopping carts without having to redesign or remanufacture expensive shopping carts. The safety device easily secures to the back rail section of the area of the cart that is directly opposite the seated child without restricting his or her natural movement.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: August 3, 1999
    Inventor: Keith William Chirgwin