Procedure for treating an effluent contaminated by mtbe or tame using the mycobacterium austroafricanum i-2562 strain fixed to a mineral support containing perlite
CA 2469954 C · Owner: Fayolle, Francoise · Inventors: Fayolle, Francoise; Lyew, Darwin; Guiot, Serge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To reduce the concentration of methyl tert-butyl ether (MTBE) or tert-amyl methyl ether (TAME) in an aquifer polluted by these ethers a new mineral support for fixing bacteria and in particular Mycobacterium austroafricanum I-2562 said mineral support comprising perlite is used in a biobarrier- or biofilter-type process.
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 May 28, 2004 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 2026.
- 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.