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Expired Canadian patentCanada

Hybrid imaging system

CA 2201070 C · Owner: Chan, Tse-Kee · Inventors: Chan, Tse-Kee; Ebner, Fritz F.

CIPO record

Overview

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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 hybrid system for digitally screening black and white and/or color images using a number of imaging techniques is disclosed. Cyan yellow, magenta and, black color separation may be processed according to the same or different methods according to gray levels or other factors in order to optimize output print, quality. A hybrid ordered matrix dot rendering system may be employed in part asan optimized screen technique in a variety of circumstances

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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 March 26, 1997 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2019.
  • 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 26, 1997
GrantedMay 15, 2001
Term endedMarch 26, 2017
Patent numberCA 2201070 C
Classification (IPC)G03G13/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 26, 1997Patent grantedMay 15, 2001Term endedMarch 26, 2017

Sources & verification

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