Interactive television program guide system that serves as a portal
CA 2337464 C · Owner: Thomas, William L. · Inventors: Thomas, William L.; Easterbrook, Kevin B.; Hassell, Joel G.
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 an interactive television program guide application and non-program-guide applications are at least partially implemented on user television equipment. A program guide program application interface is provided that is used to maintain a consistent user interface between the program guide application and the non-program-guide applications. Non-program-guide applications may be launched by the program guide application. The user may select certain non-program-guide applications as favorites and may set parental controls for certain non-program-guide applications. The program guide application may run in the background while a non-program-guide …
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 July 16, 1999 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2021.
- 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.