Ballast discharge system
CA 2354283 A1 · Owner: Mccarthy, William · Inventors: Howard, Joel S.; Mccarthy, William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cargo discharge railcar for comprising a generally rectangular base structure, a, plurality of walls coupled to the base structure defining an enclosure for carrying cargo, a, hopper portion coupled to the base structure a discharge gate coupled to the , hopper portion, a control system coupled to the discharge gate for opening and closing the, discharge gate, a central processing unit for controlling the control system and a global, positioning system receiver electrically coupled to the central processing unit for receiving, longitude and latitude data from a global positioning system transmitter orbiting the Earth. The discharge gate is adapted to be selectively opened and closed …
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 July 26, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2023.
- 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.