Patents by Inventor Barry R. Lewis

Barry R. Lewis 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).

  • Mast stepping and unstepping structure
    Patent number: 4112861
    Abstract: A sailboat hull is provided including an upright mast having upper and lower end portions. First structure pivotally supports the lower end of the lower end portion of the mast from the hull for swinging between an upright position and a lowered position with the upper end of the lower end portion swung toward one end of the hull. Second structure pivotally supports the lower end of the upper end portion from the upper end of the lower end portion for swinging between an upright position and a lowered position with the upper end of the upper end portion swung toward the other end of the hull.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: September 12, 1978
    Inventor: Barry R. Lewis