Methods and apparatus for multiple cluster locking
CA 2505259 A1 · Owner: Glasco, David B. · Inventors: Glasco, David B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and devices are provided for controlling lock and unlock operations within a computer system. A home cluster includes a home lock manager. The home lock manager is a master lock manager for the home cluster and for a plurality of remote clusters, the plurality of remote clusters including remote cache coherency controllers and a plurality of remote processors. Lock and unlock commands from the home lock manager are transmitted by a home cache coherency controller to the remote cache coherency controllers and forwarded to the remote processors.
Read the whole patent
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 November 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 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.