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Expired Canadian patentCanada

Fixing device for copier

CA 1186014 A · Owner: Hoechst Aktiengesellschaft · Inventors: Moraw, Roland

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

Disclosed is a fixing device for an electrophotographic copier, comprising a heater plate for fixing the toner image of a recording support passing over the surface of said heater plate. The heater plate comprises a multiple-layered laminate including a contact layer for contacting the recording support; a heating layer; and at least first and second heatinsulating layers, one provided on either side of the heating layer and being selected so as to provide for a lower heat capacity of the heater plate during the heating-up operation and until it reaches the working temperature than the heat capacity during continuous operation. The device comprises a heat accumulating layer, and the first …

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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 April 23, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2002.
  • 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 3, 1982
GrantedApril 23, 1985
Term endedApril 23, 2002
Patent numberCA 1186014 A
Classification (IPC)G03G15/20

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 3, 1982Patent grantedApril 23, 1985Term endedApril 23, 2002

Sources & verification

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