Systems and methods for providing digital rights management compatibility
CA 2462673 C · Owner: Capitant, Patrice · Inventors: Capitant, Patrice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A digital rights management (DRM) system includes one or more conditional access devices (such as copy control information (CCI) compliant devices); one or more license (L) compliant devices adapted to interoperate with the one or more conditional access devices, each L-compliant device and conditional access device sharing a common content access protocol and access information and an initiator coupled to the one or more L-compliant devices to initialize one or more of the L-compliant devices.
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 October 17, 2002 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 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.