Freeze tolerant fuel cell system and method
CA 2371257 A1 · Owner: Husar, Attila · Inventors: Snipas, Rachael; Husar, Attila; Ngu, Yan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A freeze tolerant fuel cell system and method of operating the freeze tolerant fuel cell system is disclosed. The freeze tolerant fuel cell system is realized by separating the coolant loop 25 from the active membrane 12 through the use of gaskets 20, 21 interposed between the collector cell plates 18, 19. A method of operating the freeze tolerant fuel cell system is disclosed which comprises flowing a coolant fluid other than pure water having a sufficiently low freezing point through the coolant loop 25. A method for startup and shutdown of the freeze tolerant fuel cell system is also disclosed.
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 April 24, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 24, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2022.
- 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.