Improvements relating to the liquid cooled i.c. engines
CA 2254822 A1 · Owner: Concentric Pumps Limited · Inventors: Sayers, Jonathan Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid cooled internal combustion engine cooling system comprising a radiator 10, and an impeller 18 mounted on a drive shaft 20 and forming part of the radiator assembly. Preferably a compartment in the radiator header tank is used as an impeller chamber and the chamber may be closed by a plate carrying a bearing and a seal for co-operation with the drive shaft from the drive motor 12.
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 November 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2020.
- 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.