System and method for generating reports for a versioned database
CA 2503524 A1 · Owner: Klein, Ralph Wilhelm · Inventors: Klein, Ralph Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for efficiently storing multiple versions of a data object (60) in a database and generating a report to display a single version of a data object corresponding to any given time are provided. The data object is represented by a versioned data structure that includes a belief time field (100) for storing a belief time corresponding to a version of the data object. A single version of the data object is retrieved by generating SQL code (95) including a SELECT clause for specifying the fields that are required for retrieving the data object and a WHERE clause for specifying the version of the data object to be retrieved. A single foreign key is used to access …
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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 10, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2025.
- 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
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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.