Patents by Inventor Raymond J. Holden

Raymond J. Holden 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: 5105914
    Abstract: In a stairlift comprising a guide track, fixed to the steps of the stairs, the guide track does not protrude below the first or second riser at the foot of the stairs and/or beyond the top of the stairs into the landing area. A second track is mounted on and supported by the first track. The length of the second track is less than the length of the flight of stairs and is selectably moveable between a position whereat the second track protrudes into the landing area at the top of the stairs, and a position whereat the second track protrudes below the first or second riser at the foot of the stairs. The user of the lift is supported on a carriage, mounted on the second track.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: April 21, 1992
    Inventor: Raymond J. Holden