Collision avoidance in database replication systems
CA 2423153 A1 · Owner: Gravic, Inc. · Inventors: Holenstein, Paul J.; Holenstein, Bruce D.; Strickler, Gary E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Database replication systems replicate blocks of transaction steps or operations with, synchronous replication and perform dual writes with queuing and blocking of transactions. Tokens are used to prepare a target database for replication from a source database and to, confirm the preparation. Database replication systems switch between a synchronous, replication mode and an asynchronous replication mode and then back to a , synchronous, replication mode based on detection of selected events.
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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 24, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 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.
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.