Method and apparatus for treating flare stack gases to reduce toxic emissions
CA 2381572 A1 · Owner: Merrick, R. T. (Moe) · Inventors: Merrick, R. T. (Moe)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas treatment composition for treating gases to remove toxic materials. The composition comprises about 85 % by weight of a particulate anhydrous silicate of alumina, calcium, sodium and potassium at about 0 % moisture and about 15 % by weight of a particulate aragonite of limestone at about 0 % moisture.
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 August 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 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.