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Expired Canadian patentCanada

An adapter system for a railway vehicle braking system

CA 2298286 C · Owner: Graves, Eric S. · Inventors: Graves, Eric S.; Moriarity, Michael J.; Daugherty, David W. Jr.

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

An adapter system for use in railway vehicle braking systems for increasing the height of a slack adjuster with respect to a force transfer lever in the braking system is provided. Increasing the height of the slack adjuster in the system results in better clearance of the slack adjuster through an opening of the truck bolster through which the slack adjuster extends in single-cylinder truck-mounted braking systems. The adapter system of the invention comprises a J-shaped member which is engageable with the transfer lever of the braking system. This J-shaped member has a first portion extending above and substantially parallel with at least a portion of the transfer lever a second portion …

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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 February 4, 2000 and granted June 10, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 4, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 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.
FiledFebruary 4, 2000
GrantedJune 10, 2003
Term endedFebruary 4, 2020
Patent numberCA 2298286 C
Classification (IPC)B61H15/00 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedFeb 4, 2000Patent grantedJune 10, 2003Term endedFeb 4, 2020

Sources & verification

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