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Expired Canadian patentCanada

Fuser release agent management (ram) system having a non-continuous pattern agent roll

CA 2185601 C · Owner: Gheer, Barry J. · Inventors: Gheer, Barry J.; Tress, Tab A.; Laplant, Bruce A.

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

In a reproduction machine having a fuser roller for fusing toner images on an image bearing sheet, a release agent management (RAM) system for applying an image offset prevent release agent to the fuser roller. The RAM system includes a rotatable supply core located to a first side of the fuser roller, a rotatable take up core located to a second side of the fuser roller, a release agent impregnated web member having a portion threaded between the supply core and the take-up core for contacting and, applying release agent to, the fuser roller and a release agent supplying, roll positioned for contacting and supplying release agent to the threaded portion of the web member. The release agent …

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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 September 16, 1996 and granted October 24, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 16, 1996
GrantedOctober 24, 2000
Term endedSeptember 16, 2016
Patent numberCA 2185601 C
Classification (IPC)G03G15/20

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedSep 16, 1996Patent grantedOct 24, 2000Term endedSep 16, 2016

Sources & verification

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