Patents by Inventor James F. Cain

James F. Cain 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).

  • Method and device for clearing a stopped up drain
    Patent number: 3952341
    Abstract: A device comprising a collapsible container having a throat configuration registrable with a drain opening and a frangible seal acting to open when the collapsible container is collapsed as in directing the caustic contents thereof into a stopped up drain.
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: April 27, 1976
    Inventor: James F. Cain