Patents by Inventor Keith H. Wiseheart

Keith H. Wiseheart 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 artist's easel
    Patent number: 4165856
    Abstract: An easel having a flat surfaced easel board mounted upon a single pedestal, the easel board being rotatable on the pedestal about horizontal and vertical axes. The pedestal is mounted upon a support base and is adjustable in height so that the easel board can be raised or lowered by adjusting the pedestal to a selected position. Extensible work holding clamps are provided at the top and bottom of the easel board. The easel is adapted to be disassembled for portability.
    Type: Grant
    Filed: June 15, 1977
    Date of Patent: August 28, 1979
    Inventor: Keith H. Wiseheart