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Expired Canadian patentCanada

Endless flexible track with tread ply, in particular for all-terrain vehicles

CA 2442913 C · Owner: Otico · Inventors: Phely, Olivier; Piou, Denis

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 endless flexible belt track produced from an elastomer comprises a steel cable (30) spirally wound in the thickness of the belt (12) and outer layers embedded in the thickness of the belt and formed successively from the turns (34) of the cable toward the outside by: a first oblique layer (36) formed from wires that in turn form a first acute angle (A) to a perpendicular to the turns of the cable; a transversal layer (38) formed from wires that in turn form a right angle to the turns of the cable; and a second oblique layer (40) formed from wires that in turn form a second acute angle (B) to a perpendicular to the turns of the cable the second acute angle (B) extending in the opposite …

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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 September 26, 2003 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 26, 2003
GrantedJanuary 10, 2012
Term endedSeptember 26, 2023
Patent numberCA 2442913 C
Classification (IPC)B62D55/24 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 26, 2003Patent grantedJan 10, 2012Term endedSep 26, 2023

Sources & verification

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