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Expired Canadian patentCanada

Coating and drying method

CA 1325320 C · Owner: Benson, John E. · Inventors: Reafler, Gerald G.; Benson, John E.; Maier, Larry K.

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

In the manufacture of a paint-coated stretchable film which is useful as a covering for automobile panels and other articles, a stretchable carrier film is formed by extruding a thermoplastic polymer composition onto a heat resistant temporary carrier film. The extruded layer i coated with paint or other layers and dried initially at a moderate temperature and finally at a high temperature which exceeds the heat deformation temperature of the stretchable carrier film but not of the heat resistant temporary carrier film. This shortens drying time and/or reduces residual solvents in the dried layers. The temporary carrier film which is, later stripped away, resists deformation of the laminate …

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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 December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 14, 1989
GrantedDecember 21, 1993
Term endedDecember 21, 2010
Patent numberCA 1325320 C
Classification (IPC)B05D1/26 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedAug 14, 1989Patent grantedDec 21, 1993Term endedDec 21, 2010

Sources & verification

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