Patents by Inventor Charles E. DuPont, Jr.

Charles E. DuPont, Jr. 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: 4858282
    Abstract: A slip-resistant and durable shoe lace with improved gripping power is formed by braiding nylon with Lurex, a vacuum metalized and resin-coated polyester film.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: August 22, 1989
    Inventor: Charles E. DuPont, Jr.