Patents by Inventor John M. Lown

John M. Lown 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).

  • Pouring spout which can be selectively opened and closed
    Patent number: 5067639
    Abstract: A pouring spout which can be selectively opened or closed to pass materials therethrough. The spout includes a threaded end which is adapted to engage a container, a spout body for conducting the materials from the container and an adjustable end which is adapted to selectively interrupt the flow of materials through the spout.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: November 26, 1991
    Inventors: Paul R. Maguire, John M. Lown