Patents by Inventor Kal Kassel

Kal Kassel 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).

  • Reusable bag
    Patent number: 5213418
    Abstract: A reusable bag includes a base. A plurality of side panels are affixed to the base and extend from the base in substantially the same direction. The base and sides of the reusable bag are formed of a semi-rigid form maintaining material which maintains its form while allowing each side and base to collapse upon itself.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: May 25, 1993
    Inventors: Kristen Dancy, Kal Kassel