Patents by Inventor Roy Shaw

Roy Shaw 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).

  • Patent number: 4571883
    Abstract: A drainage device for a plant pot or receptacle wherein said drainage device is set into the drainhole located at the center of the base of said plant pot, said drain device becoming integral with the pot, wherein the drainage device allows fluid to seep horizontally into the drainage device and, thereafter, drain out of pot thereby preventing fluid from accumulating within the pot. The device is comprised of a perforated cylinder with hemispherical top, a disc perpendicular and attached to the exterior of the cylinder, and an imperforate cylinder below the disc.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: February 25, 1986
    Inventor: Roy Shaw