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Expired Canadian patentCanada

Portable object-oriented operating system

CA 2234796 C · Owner: Object Technology Licensing Corporation · Inventors: Kanungo, Rajesh

CIPO record

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Abstract From the Canadian patent

An apparatus for enabling an object-oriented application to access in an object-oriented manner an operating system having a native interface is disclosed. The apparatus includes a computer and a memory component in the computer. A code library is stored in the memory component. The code library includes computer program logic implementing an object-oriented class library. The object-oriented class library comprises related object-oriented classes for enabling the application to access in an object-oriented manner services provided by the operating system. The object-oriented classes include methods for accessing the operating system services using procedural function calls …

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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 October 14, 1996 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 14, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 14, 1996
GrantedApril 16, 2002
Term endedOctober 14, 2016
Patent numberCA 2234796 C
Classification (IPC)G06F9/44 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedOct 14, 1996Patent grantedApril 16, 2002Term endedOct 14, 2016

Sources & verification

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