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Expired Canadian patentCanada

System and method for optimized storage and retrieval of data on a distributed computer network

CA 2269069 C · Owner: Karush, Arnold · Inventors: Kenner, Brian; Karush, Arnold

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 system and method for the optimized storage and retrieval of video data at distributed sites call for the deployment of "Smart Minor" sites (26, 28, 30) throughout a network (10) each of which, maintains a copy of certain data managed by the system. Every user (12, 16, 20) is assigned to a specific delivery site based on an analysis of network performance with respect to each of the available delivery sites. Generalized network performance data is collected and stored to facilitate the selection of additional delivery sites and to ensure the preservation of improved performance in comparison to traditional networks.

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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 October 20, 1997 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 20, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 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.
FiledOctober 20, 1997
GrantedJuly 24, 2001
Term endedOctober 20, 2017
Patent numberCA 2269069 C
Classification (IPC)G06F9/46 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedOct 20, 1997Patent grantedJuly 24, 2001Term endedOct 20, 2017

Sources & verification

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