Method for producing mucoid and phage resistant group n streptococcus strains from non-mucoid and phage sensitive parent strains
CA 1311202 C · Owner: Vedamuthu, Ebenezer R. · Inventors: Vedamuthu, Ebenezer R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for imparting phage resistance to phage sensitive strains of Streptococcus group N is described. The method involves transferring plasmid encoding for production of a mucoid substance (Muc+) into the phage sensitive strain. Even if the Muc+ plasmid is removed by curing at elevated temperatures the strains remain resistant to phage. The resulting resistant strains are novel and are used for fermentations, particularly milk fermentations.
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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
- Granted December 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 2009.
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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.