Patents by Inventor Dionne, administratrix, Pauline E.

Dionne, administratrix, Pauline E. 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).

  • Method of forming packaging material
    Patent number: 5114656
    Abstract: An improved packaging material wherein a block, sheet or molded packaging material formed of molded expanded polystyrene is compressed under controlled conditions to increase the density of the packaging material and thereby increasing the deflection qualities and resiliency of the material.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: May 19, 1992
    Inventors: Dionne, deceased Robert A., Dionne, administratrix, Pauline E.