A system and methods for assignation and use of media content subscription service privileges
CA 2737868 C · Owner: Apple Inc. · Inventors: Olvera, Kristen R.; Johnson, Barry W.; Russell, David C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention describes a system and methods for media content subscription (251) service distribution; typical services include cable television premium content channels, pay-per-view XM radio, and online mp3 services. Subscribers use portable electronic devices to store digital certificates (256) certifying the subscriber's privileges and an assigned public key (255). The devices can communicate with specially enabled televisions radios, computers, or other media presentation apparatuses. These inturn, can communicate with central databases owned by the provider for verification purposes. Methods of the invention describe media content subscription (251) service privilege issuing and …
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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 June 1, 2004 and granted November 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2026.
- 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.