Patents by Inventor Leslie H. Porter

Leslie H. Porter 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-celled enclosed carton
    Patent number: 4944405
    Abstract: A fully enclosed carton divided into four cells. Cell-dividing flaps connected to the bottom panel flaps extend into the interior of the carton through the spaces separating adjacent dust flaps. A cell-dividing flap connected to the top panel flap extends into the interior through spaces separating adjacent bottom panel cell-dividing flaps. The carton is formed from an integral blank, and the contents can be reached through tear strips in the top panel or through openings in the side panels.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: July 31, 1990
    Assignee: Manville Corporation
    Inventors: John C. Buford, Leslie H. Porter