Brazed-plate heat exchanger and air distillation device fitted with said exchanger
CA 2363506 A1 · Owner: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Proced Es Georges Claude · Inventors: Lehman, Jean-Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The heat exchanger can be used for the vaporization of a pressurized liquid and comprises at least one passage way (P) for a liquid extending in a first direction being provided with exchange waves (7) that are substantially parallel to the first direction and comprising at least one redistribution area (5) associated with at least one lateral collector (6) in an intermediate area of the length thereof in addition to being provided with deviation waves (8) extending in at least one second direction forming an angle with the first direction whereby the redistribution area takes up the entire width of the passage way in a crosswise position with respect to the first direction whereby the …
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 March 1, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 1, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 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.