Patents by Inventor Bert Shelton

Bert Shelton 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).

  • Mechanical ship lift
    Publication number: 20070020050
    Abstract: A system for lifting ships from one waterway to another waterway. A convex basin is constructed between the waterways and slidably receives a pair of inter-connected chambers movable transverse to the direction of the waterway.
    Type: Application
    Filed: July 25, 2005
    Publication date: January 25, 2007
    Inventor: Bert Shelton