Trackside friction management digital control system
CA 2489253 C · Owner: Lamond, Jacques · Inventors: Appleby, Glen; Lamond, Jacques; Papazoglou, Kostas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for applying friction modifying materials to a railroad track includes an input for receiving a signal representative of the passage of railroad vehicle defined, field programmable time duration when the number of wheels reaches the user defined, field programmable activation level. A , method of applying friction modifying materials to a railroad track performed by the apparatus is also provided.
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 June 10, 2003 and granted July 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2025.
- 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.