Patents by Inventor Robert W. Schwarzkopf

Robert W. Schwarzkopf 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: 4124159
    Abstract: A container of paperboard construction of the type having a coating of thermoplastic material that acts as an adhesive to hold the container together. The container includes a tubular body section, a top closure, and a bottom closure. The tubular body includes first, second third and fourth contiguous side walls, each of which has an inner surface and an outer surface. The sealing flap is contiguous with the fourth side wall and is sealably secured to the outer surface of the first side wall for forming the tubular body. The top closure includes a pair of opposed roof panels, a pair of triangular end panels which are in-folded between the roof panels, two pairs of triangular fold-back panels, each pair of the fold-back panels being unitary with respect to one of the roof panels, an outer rib panel connected to each of the roof panels, and a pair of inner rib panels being connected to each of the fold-back panels.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: November 7, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Robert W. Schwarzkopf