Two monitor videoconferencing hardware
CA 2297940 C · Owner: Lantz, Keith A. · Inventors: Burnett, Gerald J.; Lantz, Keith A.; Burns, Emmett R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multimedia collaboration system and method that integrates separate real- time and asynchronous networks - the former for real-time audio and video and the latter for control signals and textual graphical and other data. The system includes separate data and AV paths that interconnect a plurality of workstations. Each workstation includes two monitors - one for representing video images of the participants and the other for reproducing data interactively shared and manipulated by the participants.
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 March 16, 1994 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2016.
- 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.