Concurrent processing in object oriented parallel and near parallel systems
CA 2115464 C · Owner: Ibm Canada Limited - Ibm Canada Limitee · Inventors: O'Farrell, William G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In sequential object oriented languages such as C++ a mechanism is, provided to permit multiple asynchronous processing operations without compiler modifications, language extensions or special pre-processing. A specially adapted pointer converts a procedure call into an asynchronous task thread, while returning an expected response to permit a calling program to continue processing. The returned value can be either discarded or converted to a future variable if the calling program requires the result of the separate processing on the asynchronous thread. The invention can be used in parallel multiprocessor environments and in uniprocessors having parallel processing characteristics.
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 11, 1994 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 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.