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Expired Canadian patentCanada

Method and system for converting a schema-based hierarchical data structure into a flat data structure

CA 2458499 C · Owner: Natarajan, Ramakrishnan · Inventors: Rothschiller, Chad; Mccormack, Michael J.; Natarajan, Ramakrishnan

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Abstract From the Canadian patent

A method and system are provided for converting a hierarchical data structure into a flat data structure based on a schema. The format of the hierarchical data structure may be XML. A hierarchical data structure conforming to a schema is loaded into an application program. The data structure includes elements and attributes linked together in a parent-child relationship. The schema defines the hierarchical relationships between the elements and attributes in the hierarchical data structure. After the hierarchical data structure conforming to the schema has been loaded a plurality of layout rules is applied to the hierarchical data based on the schema to create a flat data structure. 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 February 24, 2004 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 24, 2004
GrantedDecember 4, 2012
Term endedFebruary 24, 2024
Patent numberCA 2458499 C
Classification (IPC)G06F7/00

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedFeb 24, 2004Patent grantedDec 4, 2012Term endedFeb 24, 2024

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