Call me conference call system
CA 2315980 A1 · Owner: Lucent Technologies, Inc. · Inventors: Bushnell, William Jackson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A "Call Me" conference call system includes a multiport conference unit (MCU) interconnected with the public switched telecommunications network (PSTN) a, telecommunications switching system also interconnected with the PSTN a , service, control point (SCP) or other intelligent network control component having at least a, signaling connection to the switching system a Call Me conference bridge , reservation system interconnected with the SCP and the MCU and suitable facilities , interconnecting these components. When a conference reservation is made information regarding , the, conference is distributed to the SCP and MCU. A "Called Party Busy" trigger is applied, to the conference host's …
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 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 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.