Dynamic creation, selection, and scheduling of radio frequency communications
CA 2474770 C · Owner: Dmarc Broadcasting, Inc. · Inventors: Steelberg, Ryan; Steelberg, Chad
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention includes systems (200) and methods for creating a visual/audio campaign that is delivered from the Managing Node (220) to car radios (295) and other remote devices (295) via sub-carrier frequency (290). Creation of the visual/audio campaign includes matching at least one of the item of broadcast non-specific information (such as stock quote 230) with an item of broadcast specific information (215).
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 June 21, 2002 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2024.
- 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.