Patents by Inventor William Gilbert Holt

William Gilbert Holt 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).

  • Dual purpose container
    Patent number: 4047329
    Abstract: The invention is a dual purpose container and lid for foods, cosmetics, medicines, nursery products and the like which is convertible to a flower pot. The container body and lid incorporate structural features which facilitate removal of the primary product from the container and utilization of the container for potting, the lid of said container being removable for use as a base for said container.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: September 13, 1977
    Assignee: Hercules Incorporated
    Inventor: William Gilbert Holt
  • Container-lid interlock
    Patent number: 3977563
    Abstract: The invention is a plastic container and resealable plastic lid interlock which provide centering and positive sealing of the lid with respect to the container as well as sufficient structural support to allow the container and lid to be processed on existing filling, labeling, and packaging equipment. The invention provides a double interlock, a prying flange for foolproof container opening, positive line contact sealing insured by the double interlock and a stackproof shear resistant lip.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: August 31, 1976
    Assignee: Hercules Incorporated
    Inventor: William Gilbert Holt