Patent Yard Sign in
Expired Canadian patentCanada

Wheel examining apparatus

CA 2242709 C · Owner: Masuda, Kiyoshi · Inventors: Higuchi, Yukio; Masuda, Kiyoshi; Fukuda, Yutaka

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A wheel examining system for a three axle vehicle having a first axle for front wheels, a second axle for intermediate wheels and a third axle for rear wheels which has a front-wheel examining section an intermediate, wheel examining section located upstream of the front wheel examining section with respect to a direction of advancement of the vehicle and a rear wheel examining section located upstream of the intermediate wheel examining section with respect to the direction of advancement of the vehicle. Each of said front intermediate and rear wheel examining sections includes left-hand clamp means for clamping a left-hand wheel from both sides, right-hand clamp means for clamping a …

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 July 4, 1991 and granted September 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 4, 1991
GrantedSeptember 19, 2000
Term endedJuly 4, 2011
Patent numberCA 2242709 C
Classification (IPC)G01M17/01 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 4, 1991Patent grantedSep 19, 2000Term endedJuly 4, 2011

Sources & verification

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