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Expired Canadian patentCanada

Plant capacity optimizing method for use with steckel mill

CA 2196084 C · Owner: Evraz Inc. Na Canada · Inventors: Dorricott, Jonathan

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An optimizing method for improving the efficiency of production is provided for a steel rolling mill using a Steckel mill to roll steel slab to end-product thickness and associated, downstream equipment of limited capacity to generate strip and/or plate end-product. The optimizing method allows for continuous processing of steel slab of a mass within the capacity limits of the Steckel mill and equipment upstream of the Steckel mill, but in excess of the capacity of the associated downstream equipment, by first rolling the slab in the Steckel mill to intermediate coilable thickness and then, severing the intermediate steel product to produce two derivative segments, one of a target mass …

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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 June 6, 1996 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 6, 1996
GrantedJanuary 25, 2000
Term endedJune 6, 2016
Patent numberCA 2196084 C
Classification (IPC)B21B1/34 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJune 6, 1996Patent grantedJan 25, 2000Term endedJune 6, 2016

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