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Expired Canadian patentCanada

A method of preventing or reducing temperature gradient caused bending of a structural element

CA 2556835 C · Owner: Fiberline Engineering Aps · Inventors: Thorning, Henrik; Korsgaard, Anders

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Abstract From the Canadian patent

For preventing or reducing temperature gradient caused bending of a structural element made of a material capable of withstanding heating to a specific temperature for an extended period of time when heating the element to the , specific temperature the structural element is connected to an adjacent supporting structural element through a high temperature resistant supporting body. The structural element, providing the high temperature resistant supporting body is provided as a pultruded profiled body including a solidified high temperature resistant resin and reinforcing fibres at least a part of which are constituted by fibres exhibiting high strength and high stiffness at a low …

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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 March 4, 2005 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2025.
  • 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.
FiledMarch 4, 2005
GrantedApril 23, 2013
Term endedMarch 4, 2025
Patent numberCA 2556835 C
Classification (IPC)E04B1/94 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 4, 2005Patent grantedApril 23, 2013Term endedMarch 4, 2025

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