Patents by Inventor Stephen J. Scrivens

Stephen J. Scrivens 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).

  • Plant watering apparatus
    Patent number: 4546571
    Abstract: Plant watering apparatus comprises a trough incorporating a water reservoir, and a number of separate growing units each of which is removably received within the trough and is provided with a hollow portion which is filled with growing medium and extends into the water reservoir, when the growing unit is installed within the trough, so that water is supplied from the reservoir to the growing unit by capillary action. A ballcock is provided for controlling the water level in the reservoir.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: October 15, 1985
    Inventor: Stephen J. Scrivens