Patents by Inventor John W. Stephen

John W. Stephen 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).

  • Retractable stadium cover
    Patent number: 5904003
    Abstract: The stadium with retractable cover includes a peripheral wall defining an open top and a top peripheral edge. At least one floatation device is included which is adapted to rise in air. Next provided is at least one canopy mounted to the floatation device. At least one retraction assembly is adapted for selectively transferring the canopy between a closed orientation for closing the open top of the peripheral wall and an open orientation for exposing the open top of the peripheral wall.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: May 18, 1999
    Inventor: John W. Stephen