Television video conferencing systems
CA 2385236 A1 · Owner: Ellis, Michael D. · Inventors: Treyz, G. Victor; Ellis, Michael D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system is provided in which viewers may participate in broadcast television talk shows and the like using video conferencing. Potentially objectionable material may be filtered out by a studio before the video is added to the television program. Program listings information for television programs that support video conferencing may be displayed on the display of the user equipment for viewing by a user. The user may be provided with an opportunity to schedule a time at which to participate in a television video conference. The user may add special effects. The user may also spawn or join chat sessions regarding the televesion program.
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 25, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 25, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 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.