Patents by Inventor Paul D. Hammacher

Paul D. Hammacher 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: 4481668
    Abstract: A shopping bag handle is either integral with opposing panels of a grocery bag or is formed in separate inserts attachable to grocery bag panels. The panels have central end regions which have parallel integral reinforced strips extending along the length of the panels and which may be formed by glued pleats in the panels. A U-shaped flap is cut between the reinforced lateral strips. The flap is wrapped and glued around a transverse web at the end of the panel and which is defined by the U-shaped flap. The transverse web is further reinforced by doubling the web thickness and folding its corners inwardly before wrapping the flap around the web. The reinforced web serves as the handle. The base of the handle opening formed by the flap may be formed of a panel which is folded downwardly to cover the cut edge of the transverse portion of the slit forming the flap.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: November 6, 1984
    Assignee: Champion International Corporation
    Inventor: Paul D. Hammacher