Refrigerant separation system
CA 2222632 C · Owner: Ross, Kenneth Garfield · Inventors: Thomas, Devin James; Thomas, James V.; Ross, Kenneth Garfield
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a system for separating a mixture containing at least two components, each component having a different volatility. The separation is achieved through the use of a fractional distillation column (12) and upper and lower storage vessels (16 16a, 18a) in conjunction with a , chilling unit (14) for forming a liquid phase of the mixture and a generator (18) for forming a gas phase of the mixture.
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 June 19, 1996 and granted November 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2018.
- 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.