Publishing digital content within a defined universe such as an organization in accordance with a digital rights management (drm) system
CA 2456400 C · Owner: Bourne, Steve · Inventors: Waxman, Peter David; Malik, Prashant; Rozenfeld, Yevgeniy (Eugene)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A licensor receives a request from a requestor including an identifier identifying the requestor and rights data associated with digital content where the rights data lists at least one identifier and rights associated therewith. The licensor thereafter locates the identifier of the requestor in a directory and locates in the directory based thereon an identifier of each group which the requestor is a member of. Each of the located requestor identifier and each located group identifier is compared to each identifier listed in the rights data to find a match and a digital license to render the content is issued to the requestor with the rights associated with the matching identifier.
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 January 28, 2004 and granted December 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 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.