Mutant of microbacterium, a strain 851r, and a process for producing 851r nutrient solution by application of the strain
CA 2012278 C · Owner: Yang, Zhenhua · Inventors: Yang, Zhenhua
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to one of microorganisms which is a mutant of Microbacterium named 851R. The main characteristics of this strain are as follows : a Gram-positive bacterium, motionless, with nitrate reduction ability able to produce H2S, alive in milk, heated to 63°C for 30 minutes or to 72°C for 15 minutes. The thallus is of red or orange red colour. However, the colour of the thallus is turned to pink at about 38°C and to colourless at 40°C. In particular the DNA of the strain contains R fragment which is detectable with a special R fragment DNA probe. The invention also relates to an industrial process for producing single cell protein nutrient solution by an application of the …
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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 March 15, 1990 and granted June 2, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2012.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.