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Expired Canadian patentCanada

Global process control information system and method

CA 2130801 C · Owner: Dow Benelux N.V. · Inventors: Follon, Marinus; Van De Lavoir, Ronny; Ravenscroft, Ian

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

The process control display program receives input in the form of an alphanumeric process control statement (136 138). , The alphanumeric statement is parsed into its constituent lexical units and graphical icons (160-170) corresponding to those lexical units are arranged on the display screen (116) in an interconnected network or pattern which corresponds to the syntactic relationship of the lexical units which make up he statement being displayed. The change or flow of five data is depicted by changing the visual quality or color (160, 162) of the icons and their interconnecting network to provide a graphical representation of the alphanumeric statement which is readily understood …

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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 29, 1993 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2015.
  • 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 29, 1993
GrantedApril 17, 2001
Term endedMarch 29, 2013
Patent numberCA 2130801 C
Classification (IPC)G06F9/44

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 29, 1993Patent grantedApril 17, 2001Term endedMarch 29, 2013

Sources & verification

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