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Expired Canadian patentCanada

A device for removing liquid from a moving fabric or web

CA 2599584 C · Owner: Savolainen, Olavi · Inventors: Savolainen, Olavi

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 device for removing a liquid, dusty or solid substance from a moving fabric or web. The device comprises at least: a roll placed transversely in relation to the moving fabric or web and arranged to rotate around a rotation axis, and comprising an outer mantle through which a liquid or, air flow can enter the inside of the roll; a chamber inside which said rotating roll is placed, and which comprises an opening in the direction of said rotating axis, the opening being arranged to expose at least a part of the outer mantle in such a way that the moving fabric or web tangential to the chamber can be supported against the outer mantle; and at least spiral, screw or threaded structure which is …

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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 21, 2006 and granted January 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2026.
  • 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.
FiledFebruary 21, 2006
GrantedJanuary 15, 2013
Term endedFebruary 21, 2026
Patent numberCA 2599584 C
Classification (IPC)D21F1/50

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 21, 2006Patent grantedJan 15, 2013Term endedFeb 21, 2026

Sources & verification

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