Enhanced production of biosurfactant through the use of a mutated b. subtilis strain
CA 2025812 A1 · Owner: Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of The National Research Council Of Canada · Inventors: Mulligan, Catherine N.; Chow, Terry Y.K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A B. subtilis strain possessing an enhanced surfactin production potential. The strain is a mutant of B. subtilis ATCC 21332 and has at least one mutation between Arg4 and HisA1 sites of the genetic map of B. subtilis ATCC 21332. Also included in the present invention is B. subtilis strain having the identifying characteristics of ATCC 53813.
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 September 20, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 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.