Process and means for the microbiological remediation of polluted soil and microorganisms for use in said process
CA 2047174 A1 · Owner: Haggblom, Max M. · Inventors: Salkinoja-Salonen, Mirja; Haggblom, Max M.; Valo, Risto J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a process for the microbiological remediation of soil polluted by chlorophenols the soil to be, decontaminated being composted with the chlorophenol-degrading microorganisms and the conditions being adjusted so that they favour for the growth of the microorganisms. According to the invention such chlorophenol-degrading microorganisms of the genus Rhodococcus and Mycobacterium are preferably used which are capable of degrading the chlorophenols also in field conditions. According to the invention the microorganisms are preferably immobilized in a solid porous support.
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 27, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2012.
- 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.