Patents by Inventor Edward D. Culbertson

Edward D. Culbertson 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).

  • PINCH BOTTOM BAG WITH TEAR STRIP
    Publication number: 20030152299
    Abstract: A pinch bottom bag construction, for a multiwall bag, incorporating an easy open feature, which permits the controlled opening of a portion of the mouth opening of the bag, to create a spout-like opening, with the use of a tear strip disposed on the upper step of the manufacturer's opening.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 14, 2003
    Inventors: Edward D. Culbertson, George Bradley Griffin
  • Pinch bottom bag with tear strip
    Patent number: 6599016
    Abstract: A pinch bottom bag construction, for a multiwall bag, incorporating an easy open feature, which permits the controlled opening of a portion of the mouth opening of the bag, to create a spout-like opening, with the use of a tear strip disposed on the upper step of the manufacturer's opening.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: July 29, 2003
    Assignee: Stone Container Corporation
    Inventors: Edward D. Culbertson, George Bradley Griffin
  • Pinch bottom bag with easy open feature
    Patent number: 6328471
    Abstract: A pinch bottom bag construction, for a multiwall bag, incorporating an easy open feature, which permits the controlled opening of a portion of the mouth opening of the bag, to create a spout-like opening, without requiring the use of an implement or an embedded tearstrip.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: December 11, 2001
    Assignee: Stone Container Corporation
    Inventor: Edward D. Culbertson