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Expired Canadian patentCanada

Object-oriented network protocol configuration system

CA 2178580 C · Owner: Taligent, Inc. · Inventors: Pettus, Christopher Edward

CIPO record

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Abstract From the Canadian patent

Novel object-oriented client-server facility (CSF) and networking service facility (NSF) interfaces implement communication between application programs residing in client and server nodes of a distributed services network. The CSF interface includes remote procedure call (RPC) objects for invoking and responding to service requests at the nodes and application programming interface (API) objects for transporting those requests between the nodes. However the API objects only provide communication transports within a node. Accordingly the API and RPC objects interact with dynamically-configurable protocol stacks within the NSF interfaces to complete the transport mechanism needed by an …

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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 April 11, 1994 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 11, 1994
GrantedFebruary 16, 1999
Term endedApril 11, 2014
Patent numberCA 2178580 C
Classification (IPC)G06F9/46 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedApril 11, 1994Patent grantedFeb 16, 1999Term endedApril 11, 2014

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