Patents by Inventor Gerald R. Pfieffer

Gerald R. Pfieffer 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: 5425499
    Abstract: A three piece, non-glued, triangular paperboard carton for use in the packaging of retail products such as candy and perfumes. The carton has a central, hollow, tubular body with open ends that closed by a pair of similar top and bottom end caps, one of which has interlocking engagement with the body.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: June 20, 1995
    Assignee: Jefferson Smurfit Corporation
    Inventor: Gerald R. Pfieffer
  • Patent number: 5411205
    Abstract: A carton with an opening feature that includes a securing flap having a detachable center portion foldably joined to a detachable section of a top wall panel and being congruent with and adhesively secured to a detachable portion of the carton front wall panel, whereby the securing flap and carton front wall detachable portions can be pushed into the carton and then lifted to open the carton by separating the top wall center portion from the remainder of the carton top wall.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: May 2, 1995
    Assignee: Jefferson Smurfit Corporation
    Inventor: Gerald R. Pfieffer
  • Patent number: 4383637
    Abstract: A carton in the form of a polyhedron of six sides is erected by structure insuring that human hands do not contact the interiors, important in the case of comestibles, such as popcorn.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: May 17, 1983
    Assignee: Container Corporation of America
    Inventors: Gerald R. Pfieffer, Gary W. Robertson, Charles H. Thompson, Jerry D. Williams
  • Patent number: 4180167
    Abstract: A folding carton having a reclosable pouring spout is disclosed and consists of a tube of rectangular cross section with pairs of major and minor closure flaps, one of the major closure flaps being folded to closing position underlying at least one gusseted minor closure flap, the other major closure flap being foldably connected to the minor closure flap having gusset elements and having a transverse line of weakness therein, so that a portion of the second major closure flap may be erected with the gusset elements of the minor closure flap to provided a dispensing spout.In certain embodiments the erectable portion of the second major closure flap may be provided with a diagonal line of fold, so that upon reclosing the gusseted minor closure flap the erectable portion can be reverse folded to reclose the carton.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: December 25, 1979
    Assignee: Container Corporation of America
    Inventors: David R. Leavitt, Gerald R. Pfieffer