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Expired Canadian patentCanada

Device for subsequent treatment of a coated or printed material web

CA 1284028 C · Owner: Heidelberger Druckmaschinen Ag · Inventors: Pfizenmaier, Wolfgang; Bulcsu, Istvan

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

A device for aftertreating a material web coated, or printed on at least one side thereof having a drier for, heating the material web to vaporize solvents contained therein, a vapour channel connected to the drier and traversible by the material web, and an arrangement of cooling rollers located downstream of the vapour channel each of the cooling rollers being enveloped by the material web over a region of the circumference of the cooling rollers, respectively, a first one of the cooling rollers located in the travel direction of the material web having a jacket surface thereof facing towards the coated or printed side of the web includes a doctor blade device having a transversing doctor …

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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

  • Granted May 14, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 5, 1987
GrantedMay 14, 1991
Term endedMay 14, 2008
Patent numberCA 1284028 C
Classification (IPC)F26B25/00 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMarch 5, 1987Patent grantedMay 14, 1991Term endedMay 14, 2008

Sources & verification

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