Exporting and importing of data in object-relational databases
CA 2283050 C · Owner: Lau, Leo Tat Man · Inventors: Lau, Leo Tat Man
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A computer system for transferring data from an object relational database to another such, database. The data in the source database having a table type hierarchy of data tables. The system, transforming data from the source database to a flat file format data transfer file using a defined tree, traversal order. The columns and subcolumns of the data transfer file corresponding to types and, attributes from the source database type hierarchy; The data transfer file having a type identifier, column corresponding to a type in the table type hierarchy. The system permitting the inputting of, the data from the data transfer file to a target database having a table type hierarchy …
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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 September 23, 1999 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2021.
- 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.