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Expired Canadian patentCanada

Double chassis scraper with pivoting tracks

CA 2548684 C · Owner: Audet, Carl · Inventors: Audet, Carl

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 tractor described in this abstract includes a forward part including a cabin and is supported by a first pair of lateral tracks a rear part supported by a second pair of lateral tracks and which is coupled to the forward part using a coupling joint allowing the rear part to pivot right and left relative to the forward part and a propulsion system including two differentials each respectively mounted to the forward and rear parts so as to be respectively coupled to the first and second pairs of lateral tracks; the two differentials being interconnected operationally by the coupling joint. The propulsion system in addition includes an engine and a transmission mounted to the rear part so as …

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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 May 29, 2006 and granted April 21, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 2006
GrantedApril 21, 2015
Term endedMay 29, 2026
Patent numberCA 2548684 C
Classification (IPC)E01H4/02 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 29, 2006Patent grantedApril 21, 2015Term endedMay 29, 2026

Sources & verification

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