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Expired Canadian patentCanada

Process for laminating a film under pressure and heat and an apparatus for carrying out the process

CA 1256007 A · Owner: Clariant Gmbh · Inventors: Kuehnert, Hans-Guenter E.

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 carrier, such as for example, a, printed circuit board, a multi-layer lamination a metal, plate or a carrier layer with metal layers coated on both sides, is heated in a horizontal position on both sides over its entire surface in a heating station and is guided up to a photo-resist film which is fixed vertically on suction plates of vacuum tables and which also spans a laminating station located between the vacuum tables. The photo-resist film is drawn off from a single supply roll by means of a gripper bar and is guided over the vacuum tables and the laminating station. A cutting device cuts through the photo-resist film transversely to its longitudinal direction. The carrier touches …

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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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 1985
GrantedJune 20, 1989
Term endedJune 20, 2006
Patent numberCA 1256007 A
Classification (IPC)B29C43/18 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedMay 31, 1985Patent grantedJune 20, 1989Term endedJune 20, 2006

Sources & verification

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