Communications system with communication terminals which are connected to a communications system via a packet-oriented communication network
CA 2349453 A1 · Owner: Siemens Aktiengesellschaft · Inventors: Wahler, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The communications installation (PBX) is connected to a broadband connection unit (BB-AE) provided with a network connection interface (STM1) and the communication terminal devices (KE) are connected to the communication network (ATM-KN) via transfer units (ATM-HUB). The broadband connection unit (BB-AE) comprises converter units (STMAX) that are allocated to the transfer units (ATM HUB), enabling bi-directional conversion between the data format of the packet-oriented communication network (ATM-KN) and an internal switching installation data format. The broadband connection unit (BB-AE) also comprises a switching matrix module (BB-KN) that combines data that is to be transmitted …
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 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 2, 2021.
- 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.