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Expired Canadian patentCanada

Low-overhead storage cluster configuration locking

CA 2521947 C · Owner: Whyte, Barry Douglas · Inventors: Jones, Michael John; Whyte, Barry Douglas; Carr, David John

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Abstract From the Canadian patent

A storage control apparatus, in communication with a cluster of storage devices in a storage network having plural administrator systems comprises a , cluster lock requester component a cluster lock receiver component and a configuration component, wherein, responsive to receipt of a cluster lock by said cluster lock receiver component, the configuration component is operable to configure a logical resource object within said cluster. The apparatus may also include a cluster lock granter component operable to grant a cluster lock to the cluster lock receiver component responsive to said cluster lock requester component. A method of operating a storage control apparatus includes …

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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 March 29, 2004 and granted September 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 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.
FiledMarch 29, 2004
GrantedSeptember 10, 2013
Term endedMarch 29, 2024
Patent numberCA 2521947 C
Classification (IPC)G06F9/50 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 29, 2004Patent grantedSep 10, 2013Term endedMarch 29, 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.