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Expired Canadian patentCanada

System and method for computer aided software engineering

CA 2077975 C · Owner: International Business Machines Corporation · Inventors: Chang, Roger A.; Torres, Robert J.; Smith, Andrew J.

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 data processing system supports preparation of a software application by coordinating the efforts of a metaprogrammer and a plurality of system users responsible to the metaprogrammer. The data processing system includes a plurality of workstations, each having a display and a user input device. Each of the workstations is connected to shared memory for access to data objects stored therein. One data object is a blank project container which includes a plurality of subject objects relating to phases in a product life for a software application. The metaprogrammer is authorized to replicate a blank project container to provide a project specified container available in shared memory to …

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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 10, 1992 and granted February 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2014.
  • 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 10, 1992
GrantedFebruary 15, 2000
Term endedSeptember 10, 2012
Patent numberCA 2077975 C
Classification (IPC)G06F9/44 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedSep 10, 1992Patent grantedFeb 15, 2000Term endedSep 10, 2012

Sources & verification

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