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Expired Canadian patentCanada

Method and system in a paper machine and software product

CA 2587614 C · Owner: Norri, Petri · Inventors: Sundqvist, Hans; Norri, Petri

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

The invention comprises a method and a system in a paper machine and also a , software product, allowing one or more tools to be generated for indicating the state of the paper production process in terms of energy consumption to the operating staff of the paper machine. This allows continual monitoring of the state of the paper production process and/or its energy efficiency combined with efforts to develop the manners of running the paper machine and its dryer section in a more favourable direction. In one embodiment of the invention, the dry solids content DSC of the press section can be calculated by means of the evaporation amount of the dryer section the production of , …

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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 11, 2005 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 11, 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.
FiledNovember 11, 2005
GrantedJanuary 3, 2012
Term endedNovember 11, 2025
Patent numberCA 2587614 C
Classification (IPC)D21F7/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 11, 2005Patent grantedJan 3, 2012Term endedNov 11, 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.