Patents by Inventor John S. Cummings

John S. Cummings 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).

  • Convertible stopper for a wide mouth thermos
    Patent number: 4006835
    Abstract: A thermos bottle utilizing a wide opening vacuum filler is disclosed. The thermos is provided with a compound stopper removably engaging the thermos for converting the wide mouth thermos to a narrow mouth configuration.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: February 8, 1977
    Assignee: Aladdin Industries, Incorporated
    Inventor: John S. Cummings