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Expired Canadian patentCanada

Methods and mechanisms for proactive memory management

CA 2723077 C · Owner: Microsoft Technology Licensing, Llc · Inventors: Fortin, Michael R.; Sechrest, Stuart; Iyigun, Mehmet

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A proactive, resilient and self-tuning memory management system and method that result in actual and perceived performance improvements in memory management by loading and maintaining data that is likely to be needed into memory before the data is actually needed. The system includes mechanisms directed towards historical memory usage monitoring memory usage analysis, refreshing memory with highly-valued (e.g. highly utilized) pages I/O pre-fetching efficiency, and aggressive disk management. Based on the memory usage information pages are prioritized with relative values and mechanisms work to pre-fetch and/or maintain the more valuable pages in memory. Pages are pre-fetched and maintained …

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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 22, 2003 and granted May 13, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 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.
FiledSeptember 22, 2003
GrantedMay 13, 2014
Term endedSeptember 22, 2023
Patent numberCA 2723077 C
Classification (IPC)G06F12/00

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 22, 2003Patent grantedMay 13, 2014Term endedSep 22, 2023

Sources & verification

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