Patents Examined by Todd Kilkenny
  • Patent number: 6267837
    Abstract: An insulating paperboard container is disclosed including a container body having a side wall and a bottom wall with the one side wall including a base layer and an insulating layer on at least a portion of the base layer, preferably on an inside surface of the side wall. The insulating layer being selectively adhered to at least a portion of the base layer such that the selective adhering of the insulating layer to the base layer creates air pockets between the insulating layer and the base layer with the air pockets being expandable in response to contact with a heated liquid. Such a container is formed from an insulating stock material comprising a paperboard base layer and an insulating layer overlying at least a portion of at least of one surface of the base layer with the insulating layer being selectively adhered to the surface of the base layer forming enclosed regions between the base layer and the insulating layer.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: July 31, 2001
    Assignee: Fort James Corporation
    Inventors: Richard P. Mitchell, Gerald John Van Handel, Galyn A. Schulz