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Expired Canadian patentCanada

Supporting device for non-averaged force

CA 2372418 C · Owner: Igarashi, Masashi · Inventors: Tenma, Katsutoshi; Saito, Kikuo; Shimizu, Haruhiko

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 supporting device for non-averaged force in a pipeline comprised of a frame that is fixed to a supporting portion and a fixing mechanism for fixing a pipe body to the frame wherein wedge bodies capable of blocking movements of the pipe body in a pipe axial direction with respect to the frame are provided when being pressed against an outer surface of the pipe body through pressing force acting from the frame towards the pipe body.

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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 19, 2002 and granted September 20, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2024.
  • 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 19, 2002
GrantedSeptember 20, 2011
Term endedFebruary 19, 2022
Patent numberCA 2372418 C
Classification (IPC)F16L3/00 +1 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 19, 2002Patent grantedSep 20, 2011Term endedFeb 19, 2022

Sources & verification

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