Electronic rights management and authorization system
CA 2235276 C · Owner: Johnson, Woodrow W. · Inventors: Atkins, Christine J.; Yoh, Jon A.; Johnson, Woodrow W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electronic rights management and authorization system to account for the dynamic, multi-dimensional, and granular nature of rights. A database structure divides works and rights into two related tables. A works table includes information sufficient to identify works managed by the system while , a rights table identifies a right associated with a work and includes one or more date fields delimiting the right. The rights table may also include type of use information. Additional tables, such as a work relation table a party , table, or an order table, may be provided. Software is used to manage and to query the database structure. The system has broad applicability to intellectual, …
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 March 28, 1997 and granted September 16, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2019.
- 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.