Patents by Inventor Theodore S. Pearson, deceased

Theodore S. Pearson, deceased 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).

  • Patent number: 4919234
    Abstract: The portable lift of the present invention includes a forward lift frame and a rear lift frame adapted to be connected to the forward and rear ends of the vehicle. Each of the lift frames includes a vertical tube or mast assembly having at least two telescopically extensible tube sections. Hydraulic extensible cylinders are within the tube assemblies of the forward and rear lift frames for causing the raising and lowering of the forward and rear lift frames between retracted and extended positions. An elongated support platform is pivotally connected to the upper ends of the tube lift assembly and is adapted to be raised and lowered in unison therewith.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: April 24, 1990
    Inventors: Theodore S. Pearson, deceased, by Diane M. Pearson, executor