Communications system
CA 2387507 A1 · Owner: Emmerink, Antonius · Inventors: Windecker, Rainer; Klein, Egon; Winkler, Steffi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method and an arrangement for connecting and disconnecting communications links via a private branch exchange (250). The transport network (700) for transporting the communications data is preferably designed as an ATM network or IP network and is controlled by a control network (310, 410) separated therefrom. The advantage is that both networks are independent from one another and that the number of modules can easily be increased with regard to broad band communications requests. Already present central data (DB) on users can be used and control units of performance characteristics that are also related to the connection can be further used by virtue of …
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 August 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 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.