System for managing an audio conference
CA 2251154 C · Owner: Rockstar Bidco, Lp · Inventors: Lowery, Teddy Blaine; Mcintee, Mark Joseph; O'Shaughnessey, Patrick Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An audio conference system includes an audio telephone connection and a separate network computer connect. In arranging a conference with the audio conference system a conference time and potential participants are designated. At the conference time the audio conference system directs the public switched telephone network to place a telephone call to each of the potential participants and sends an invitation to a computer systems associated with the potential participants regarding the audio conference. The potential participants then return an indication of whether they desire to be audio conference participants and computer conference participants. If so the audio conference system will …
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 October 19, 1998 and granted January 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 2020.
- 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.