Subway tv media system
CA 2286794 A1 · Owner: Blair, Scott · Inventors: Blair, Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A television system for subway cars (10) includes a plurality of TV monitors (22) mounted at intervals along the cars (10) at the junction of the sidewall , and the ceiling and a central video signal source unit (23) such as a video tape player, video disk player, computer-based digital video recorder or television receiver, connected to the video monitors (22). Programs of short duration, e.g. 5-15 minutes, matching the average length of a subway ride and , comprising advertising messages, news bytes and the like are played and displayed in the monitors repeatedly during the subway ride.
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 May 6, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 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.