Patents by Inventor Douglas A. Tudman

Douglas A. Tudman 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).

  • Publication number: 20120090206
    Abstract: The invention displays manually inserted themed artwork in a plastic unit which is inserted into a standard 2? hitch box at rear of vehicle. The full color themed artwork is visible when brake light is off and enhanced when brake light is on. The unit body contains the LED light, reflective background, red colored plastic light diffuser, and electrical pigtail connector which plugs into the vehicle's 12 volt DC receptacle. Unit has a unique clear acrylic swing-down door that holds the acetate artwork in a built-in channel immediately behind the door. Unique acetate artwork is manually interchangeable. A square foam washer takes up tolerance between the metal hitch box and the plastic unit body. An O-ring mounted around the inside of the clear acrylic door provides a weather-tight seal protecting internal parts and artwork acetates.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 19, 2012
    Inventors: John Edwin Prescott, Douglas A. Tudman