Patents by Inventor Jacques Grignon

Jacques Grignon 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).

  • Hardboard-like panel
    Patent number: 4514448
    Abstract: Hardboard-like panel having a core of wood fibres intimately mixed with asphalt forming 10-30% by weight of the core. The core is porous and contains 50% by volume of air cells. A resin-impregnated paper is glued to the core. The panel is preferably coated with a long life thermosetting acrylic finish, and used as an exterior siding. A process for making same is also described.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: April 30, 1985
    Assignee: Domtar Inc.
    Inventor: Jacques Grignon