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Expired Canadian patentCanada

Data integration by object management

CA 1289255 C · Owner: Pham, Ly-Huong Thi · Inventors: Soucie, Marc San; Pham, Ly-Huong Thi; Surprenant, Carolyn E.

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 object based data processing system including an extensible set of object types and a corresponding set of "object managers" wherein each object manager is a program for operating with the data stored in a corresponding type of object. The object managers in general support at least a standard set of operations. Any program can effect performance of these standard operations on objects of any type by making an "invocation" request. In response to an invocation request, object management services (which are available to all object managers) identifies and invokes an object manager that is suitable for performing the requested operation on the specified type of data. A mechanism is …

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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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 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.
FiledAugust 19, 1988
GrantedSeptember 17, 1991
Term endedSeptember 17, 2008
Patent numberCA 1289255 C
Classification (IPC)G06F9/46 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedAug 19, 1988Patent grantedSep 17, 1991Term endedSep 17, 2008

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