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Expired Canadian patentCanada

Surface processing jet

CA 2072829 C · Owner: Candor Sweden Ab · Inventors: Lindwall, Reine

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 surface processing device for cleaning and other surface processing of running material where the material, is passed under movement in a path (19A) through the device wherein the device is provided with means comprising an, inner cavity (13) that is fed with a processing agent under pressure and has a jet forming slot (20) to direct to the running material a well defined laminar jet of the processing agent under an acute angle.

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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 30, 1992 and granted September 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2014.
  • 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 30, 1992
GrantedSeptember 23, 2003
Term endedJune 30, 2012
Patent numberCA 2072829 C
Classification (IPC)B08B3/02 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJune 30, 1992Patent grantedSep 23, 2003Term endedJune 30, 2012

Sources & verification

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