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Expired Canadian patentCanada

Expert information system and method for decision record generation

CA 1284230 C · Owner: Phillips, Clarence W. · Inventors: Jacobus, Gerry A.; Phillips, William F.; Phillips, Clarence W.

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

An expert information system with which a decision maker in the construction, or a related industry, can generate a decision record and related control instructions in a facile manner without significant omissions while ensuring that substantially all of the options available for making the decisions have been considered. The expert system includes a microcomputer which executes a system control program to select information units from the expertise of a data base and to concentrate individual information units until an entire decision record has been generated. The process is enhanced by a multiwindowed display which displays possible selections from the expert data base while contrasting …

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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 May 14, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 21, 1987
GrantedMay 14, 1991
Term endedMay 14, 2008
Patent numberCA 1284230 C
Classification (IPC)G06F17/50 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMay 21, 1987Patent grantedMay 14, 1991Term endedMay 14, 2008

Sources & verification

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