Absorption refrigerating system and working mixture for said system
CA 2278654 A1 · Owner: Huor, Meng-Heng · Inventors: Le Halpere, Gilles; Huor, Meng-Heng; Prevost, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The absorption refrigerating system is a refrigerating system by absorption with double separating effect in which the pressure of condenser (K2) is offset relative to the pressure of the second generator (G2). In such a refrigerating system by absorption the working mixture consists of methanol as refrigerating agent and a compound of the methylphenol group as solvent. Such a system is useful for producing cold or heat particularly for the air conditioning of elementary units of a building.
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 December 31, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 31, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 2019.
- 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.