Process for the preparation of ma
CA 2062446 A1 · Owner: Hedtmann, Udo · Inventors: Ehlers, Eberhard; Hedtmann, Udo; Aretz, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A process for the preparation of MA, The invention relates to a process for the preparation of MA, which ensures MA production by enzymatic catalysis in glycine/NaOH buffer, and by the use of a phosphatecontaining culture medium for Bacillus sp. DSM 4675 and by extraction of the biomass with acetone.
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 March 6, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2014.
- 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.