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Expired Canadian patentCanada

Method and system for executing a database query

CA 2744925 C · Owner: Sap Ag · Inventors: Nobles Acie E. Jr.; Zeng, Pucheng (Patrick); Hutchison, Grant L.

CIPO record

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Abstract From the Canadian patent

For a database management system installed in a data processing system the database management system for managing a database having partitions for storing table data based on a partitioning schema in which each partition has an associated partition identifier and in which the database has database catalog information associated therewith a method for executing a query against the database is disclosed. The method includes identifying a partition identifier in accordance with the partitioning schema selecting the partition identifier based on the contents of the query and the database catalog information and executing the query against the identified partition. The method improves the …

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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 8, 2003 and granted June 3, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 8, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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.
FiledApril 8, 2003
GrantedJune 3, 2014
Term endedApril 8, 2023
Patent numberCA 2744925 C
Classification (IPC)G06F16/24 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedApril 8, 2003Patent grantedJune 3, 2014Term endedApril 8, 2023

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