Workflow mechanism for a stateless environment
CA 2226062 A1 · Owner: Chen, Kangyi · Inventors: Chen, Kangyi; Zhand, Xiaomei; Singh, Ajit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A workflow mechanism for a stateless or connectionless environment such as the Internet or an Intranet. The workflow mechanism comprises an inference engine and a justification based truth management system. The inference engine and the justification based truth management system are packaged in the workflow item together with the data and business rules components, and downloaded with the workflow item to a client. The inference engine informs the truth maintenance system about the justifications relevant to workflow items. When the time comes to determine state of a workflow item, the inference engine queries the truth maintenance system which provides the state of the workflow item based …
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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 December 31, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.