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Expired Canadian patentCanada

Drive-capable support or traction means and method for production thereof

CA 2447754 C · Owner: Eichhorn, Roland · Inventors: Eichhorn, Roland

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

The invention relates to a drive-capable support or traction means and a method for the production thereof with at least one layer of strands of synthetic fibre material and with an outer casing encasing the strands wherein a lubricant is selectively incorporated in the support or traction means in such a manner that the strands are lubricated for a movement relative to one another with a coefficient of friction.

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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 November 3, 2003 and granted May 10, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 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.
FiledNovember 3, 2003
GrantedMay 10, 2011
Term endedNovember 3, 2023
Patent numberCA 2447754 C
Classification (IPC)D07B1/16 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 3, 2003Patent grantedMay 10, 2011Term endedNov 3, 2023

Sources & verification

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