Process for the treatment of aqueous effluents containing methyl-tert-butylether and (or) methyi-tert-amyl ether by mycobacterium austroafricanum-i-2562
CA 2407199 C · Owner: Monot, Frederic · Inventors: Francois, Alan; Monot, Frederic; Fayolle, Francoise
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for treatment of aqueous effluents that contain at least methyl-tert-butyl ether (MTBE) or methyl-tert-amyl ether (TAME) so as to reduce the concentration of said ether is described characterized in that a Mycobacterium austroafricanum I-2562 bacterium is grown under aerobic conditions in the presence of a growth substrate that contains said ether and said ether is degraded by said bacterium down to the final degradation products carbon dioxide and water. The results are improved in the presence of yeast extract. Application to the treatment of an aquifer.
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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 October 11, 2002 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2024.
- 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
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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.