A method for constructing a portion of a pipeline
CA 2545401 C · Owner: Jfe Steel Corporation · Inventors: Suzuki, Nobuhisa; Masamura, Katsumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of determining strain hardening characteristics of a pipe able to reduce costs with safety ensured. A pipe production method using this pipe strain hardening characteristics determining method and a pipe and a pipeline , produced by this pipe production method. The method of determining strain hardening characteristics of a pipe comprises the pipe condition setting step of setting the diameter D, pipe thickness t and required compression local , buckling strain .epsilon.req of a pipe the strain hardening characteristics , acquiring step of determining the strain hardening characteristics in the vicinity of a buckling point of the pipe that satisfy the conditions set in the …
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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 December 10, 2004 and granted July 27, 2021. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2024.
- 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.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.