Railroad switchyard management process and related infrastructure
CA 2835657 C · Owner: Canadian National Railway Company · Inventors: Muinonen, Kari; Doyle, Gordon; Morency, Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for computing car switching solutions in a railway switch yard that has a switch and a plurality of classification tracks, the railway switch yard holding a plurality of empty cars yet to be switched by the switch. The system comprising input means for receiving data specifying a particular empty car to include in a departure train to be built by the railway switch yard and a processing entity including a CPU and a machine readable storage encoded with software. The software is configured for computing car switching solutions to assemble the departure train the car , switching solutions being such as to substitute an empty car from the plurality of empty cars …
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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 December 30, 2005 and granted January 17, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 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.