System for tracking the history of channel based network devices
CA 2310944 A1 · Owner: Nortel Networks Limited · Inventors: Liste, Matthew; Moeller, Douglas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for determining the history of at least one network device, (the "given device") in a set of channel-based network devices coupled to a network, maintains a history memory to generate a history of the given device. To that end, the, current status of the given device is recorded in the history memory at one or more, selected times. The current status is retrieved at the selected times from a registration, memory that has the current status of the given network device. A reply message with, device data relating to the given device responsively is generated in response to receipt of, an inquiry message requesting information about the given device. The device …
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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 June 2, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 2, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2022.
- 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.