Patents by Inventor John Harry Gauntlett

John Harry Gauntlett 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).

  • Containers
    Patent number: 3935975
    Abstract: This invention is a seal for a moulded plastics container for pressurised fluid, consisting of a resilient flap normally held closing an opening in the container wall by its resilience and by pressure differential. The container can be made by a compression moulding process in which the moulds are progressively closed after the material is injected.
    Type: Grant
    Filed: July 26, 1973
    Date of Patent: February 3, 1976
    Inventor: John Harry Gauntlett