Displaying channel advertisements with an electronic program guide
CA 2779619 C · Owner: Rovi Guides, Inc. · Inventors: Yuen, Henry C.; Leung, Elsie Y.; Kwoh, Daniel S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of displaying channel advertisements with an electronic program guide (EPG) involves accessing a memory to recover EPG data corresponding to a number of television programs displaying program information listings based on the recovered EPG data in a plurality of rows displaying an advertisement as a row in a region distinct from the program listings and displaying a program in an overlay video window.
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 December 19, 1997 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2019.
- 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.