Method and apparatus for transferring liquids
CA 2535936 C · Owner: Constant, Jim · Inventors: Constant, Jim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for replacing used oil in a vat the system including a nozzle having inner and outer concentric passageways the outer passageway being connected to a supply of replacement oil pumps associated with each of the inner and outer passageways with a valve structure and a nozzle, the valve structure having biasing means. The system is suitable for pumping hot oil from a vat such as used in commercial kitchens to a storage receptacle and subsequently pumping replacement oil into the vat.
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 9, 2006 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2026.
- 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.