Patents by Inventor Sandra F. Doyon

Sandra F. Doyon 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).

  • Adjustable leg assembly
    Patent number: 4416439
    Abstract: An adjustable and extendable leg with nestable segments to provide a choice of lengths. The leg may be pivotably connected to a platform so as to be able to dispose the platform at selected angles and heights with respect to a horizontal support surface.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: November 22, 1983
    Inventors: Fred Dimpfel, Steven J. Hahn, Brian J. Dyson, Sandra F. Doyon