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Expired Canadian patentCanada

Wheelchair with tiltable seat

CA 2311934 C · Owner: Mundy, Phil · Inventors: Delorme, Matt; Mundy, Phil; Balcom, Nancy

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A wheelchair with a tiltable seat locates the tilt fulcrum between 3 and 7 inches from the front edge of the seat pan and between 1 and 4 inches below the surface of the seat pan. This minimizes the elevation of the rider's knees when in a tilted position and allows for more stability and a shorter wheel base. Manual self-tilting is facilitated by a gas strut arrangement disposed on brackets below the seat pan and operated by a rider-controlled valve.

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed June 19, 2000 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 19, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 19, 2000
GrantedAugust 21, 2012
Term endedJune 19, 2020
Patent numberCA 2311934 C
Classification (IPC)A61G5/00 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJune 19, 2000Patent grantedAug 21, 2012Term endedJune 19, 2020

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.