Object-oriented task security framework
CA 2178585 C · Owner: Orton, Debra L. · Inventors: Orton, Debra L.; Rollin, Keith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A view system is disclosed which provides support for a mechanism to provide a multitask-safe wrapper or objects which are not multitask safe. This mechanism makes it possible to use objects that are not task-safe in a multitasking environment without modifying or understanding the internal workings of the said objects. This mechanism is not view system-specific but is provided and used by the view, system to support such behaviour.
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 September 12, 1994 and granted December 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2016.
- 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.