Valve assembly
CA 2749164 C · Owner: Weir Minerals Australia Ltd · Inventors: Smit, Peter Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a cylindrical housing (20) capable of being mounted with a liquid container. The cylindrical housing (20) comprising an inlet float , valve (40) and a fuel chamber that passes liquid before a liquid inlet (30) in the , housing (20). A first hole (21) in the cylindrical housing (20) wall is configured to allow , liquid to pass out of the cylindrical housing (20) when the inlet float valve (40) is in a , open position. A second hole (21) is configured to allow liquid to pass into the , cylindrical housing (20) to move the inlet float valve (40) to a closed position. A third , hole (21) is positioned such that a portion of the third hole (21) is located above …
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 October 30, 2003 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 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.