Systems and methods for interactive program guides with personal video recording features
CA 2438947 C · Owner: Thomas, William L. · Inventors: Baumgartner, Joseph P.; Ellis, Michael D.; Thomas, William L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and systems that provide enhanced personal video recorder ("PVR") and interactive television program guide ("IPG") functionality are provided. An interactive television application ("application") may be implemented to provide such functionality. The application may be used to display a list of a PVR recordings, to schedule recordings to a PVR to configure recordings, to , view a list of scheduled recording to configure recording settings, or to select delete priority settings for recordings. The application may integrate pay-per-view and PVR functionality. The application may send user notifications for changes that are to be made to the recording content of a PVR. Live …
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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 February 21, 2002 and granted March 22, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 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.