Canadian application, no grantCanada
Process and plant for producing carbon monoxide
CA 2197529 A1 · Owner: Billy, Jean · Inventors: Billy, Jean
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a process for producing carbon monoxide a, synthesis gas generated from a feed fluid is separated by a cryogenic distillation step. A fraction enriched in residual methane is recycled to the feed fluid.
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 February 13, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 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.
FiledFebruary 13, 1997
GrantedNo grant recorded
Term endedFebruary 13, 2017
Patent numberCA 2197529 A1
Classification (IPC)C01B32/40 +2 more
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.