Asynchronous mirroring in a storage area network
CA 2457091 A1 · Owner: Nahum, Nelson · Inventors: Nahum, Nelson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and a system for simultaneously mirroring of one or many data objects from one or many local storage devices to one or many remote storage devices. The one or many data objects may be used during mirroring. A mirroring functionality consists of the application of a succession of freeze and copy procedures repeated sequentially in successive mirroring cycles. Only the last local updated mirrored version is saved in the remote storage device(s). Each new updated version overwrites the previous version. Mirroring is performed asynchronously in the background by freezing and copying successive discrete blocks of data. The mirroring functionality is operable to perform more than …
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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 August 13, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.