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Expired Canadian patentCanada

Method and apparatus for loading data into a database in a multiprocessor environment

CA 2209549 C · Owner: Lightstone, Sam · Inventors: Lightstone, Sam; Comeau, Alain C.

CIPO record

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Abstract From the Canadian patent

This invention provides a method and apparatus for loading data having a predetermined order of data records from a source into a database using parallel processing. Using one or more reading agents, data records are read from the source in which they are stored. These data records are stored in groups of records. Each group of stored records are tagged with a sequence identifier corresponding to the predetermined order of data. Apparatus is provided for formatting the data records in the groups using a plurality of formatting agents in parallel. The formatted records are stored in formatted record groups. Sequence identifiers are written for each of the groups to the respective formatted …

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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 July 2, 1997 and granted May 2, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 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.
FiledJuly 2, 1997
GrantedMay 2, 2000
Term endedJuly 2, 2017
Patent numberCA 2209549 C
Classification (IPC)G06F16/10 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJuly 2, 1997Patent grantedMay 2, 2000Term endedJuly 2, 2017

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