Method for cleaning a waste gas
CA 2337033 A1 · Owner: Biostar Development C.V. · Inventors: Verbraak, Petrus Leonardus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for removing gaseous components from a gas which involves the gas , being brought into contact with a scrub liquor in a scrubber the scrub liquor , being provided with agents for removing both most of the sulphur oxides present in the gas and most of the nitrogen oxides present in the gas from the gas.
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 July 12, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2021.
- 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.