Patents by Inventor Walter D. Baker

Walter D. Baker 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).

  • Apparatus for containment of oral secretions
    Patent number: 4628547
    Abstract: The present invention is a pocket cuspidor which is simple, sanitary and convenient for containerizing oral secretions. Tobacco juice, spitum and other oral secretions are expectorated through a mouthpiece into a small portable container. Pressing a thumb tab simultaneously opens a mouthpiece valve and a vent valve, allowing spitum to enter the container and air, displaced by spitum, to escape. Releasing the thumb tab closes both valves, sealing the container. The small sealed container may be carried conveniently in clothing and handbags. The apparatus includes a container and removable top.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: December 16, 1986
    Inventor: Walter D. Baker
  • Address light
    Patent number: D631514
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: January 25, 2011
    Inventor: Walter D. Baker