Patents by Inventor William F. Stevenson

William F. Stevenson 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).

  • Portable ballet bar with adjustable bracing means
    Patent number: 4126307
    Abstract: A support structure for assisting an exercising dancer in maintaining her balance has vertical legs which support a horizontal rail. The legs are telescopic and adjustable as to length. Suction cups are pivotally mounted on bracing members which are adjustable lengthwise and circumferentially of the legs. The cups can be clamped to surfaces disposed at an angle to the floor on which the legs rests, or to a surface parallel to the floor, and thus lend support to the rail.
    Type: Grant
    Filed: June 15, 1977
    Date of Patent: November 21, 1978
    Inventor: William F. Stevenson