Patents by Inventor John Francis Otis

John Francis Otis 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).

  • Rolling cane, walker-trainer, shopper with automatic braking
    Patent number: 7252105
    Abstract: A lightweight metal or plastic framework which has a handle (11) at the top of a vertical shaft (12) with built in arms (13,14) below the handle and a bottom shaft (15) attached to the end of the vertical shaft (12). The said bottom shaft (15) is bent down at both ends on which are attached rubber bumper-pivots (16,17) that act as bumpers for the ends of shaft (15) and lift said wheels from said surface when said framework is leaned toward the user. Two bearing fitted wheels (18,19) are attached on the same side of said framework to said bottom shaft (15) by axles (20,21).
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: August 7, 2007
    Inventor: John Francis Otis
  • Rolling cane, walker-trainer, shopper with automatic braking
    Publication number: 20040216776
    Abstract: A lightweight metal or plastic framework which has a handle (11) at the top of an adjustable vertical shaft (12) with built in hooks (13,14) below the handle and a bottom shaft (15) attached to the end of the vertical shaft (12).
    Type: Application
    Filed: March 5, 2004
    Publication date: November 4, 2004
    Inventor: John Francis Otis