Patents by Inventor John Michael Chaffers

John Michael Chaffers 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).

  • Multi-ply panel with stacking tab
    Patent number: 3946934
    Abstract: A wall panel for a containerboard box is erected from a single piece blank into a four-ply, high-strength wall having an integral stacking tab extending upwardly from the top edge.
    Type: Grant
    Filed: January 2, 1975
    Date of Patent: March 30, 1976
    Assignee: Weyerhaeuser Company
    Inventor: John Michael Chaffers