Expired Canadian patentCanada
Transmitting and processing protected content
CA 2420795 C · Owner: Thomson Licensing S.A. · Inventors: Delaunay, Eric; Dublanchet, Frederic; Leporini, David
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is method of transmitting data comprising transmitting , conditional access information and content management information independently.
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 August 24, 2001 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 2001
GrantedSeptember 17, 2013
Term endedAugust 24, 2021
Patent numberCA 2420795 C
Classification (IPC)H04N21/63 +2 more
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.