Content protection ticket system and method
CA 2564862 C · Owner: Blackberry Limited · Inventors: Kirkup, Michael G.; Little, Herbert A.; Adams, Neil P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods systems and for regulating access to sensitive data on a device. A request can be made for a ticket in order to obtain access to data stored on the device. The ticket is received from the device and the received ticket is , used to access data stored on the device.
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 February 25, 2005 and granted January 2, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.