Method for purification of japanese encephalitis virus
CA 1251400 A · Owner: Juridical Foundation The Chemo-Sero-Therapeutic · Inventors: Sakamoto, Kuniaki; Gotoh, Isao; Sakoh, Mitsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of Disclosure, Disclosed is an improved method for the purification of Japanese encephalitis virus, which comprises subjecting a solution containing the Japanese encephalitis virus to column chromatography using, as a gel for chromatography, a sulfuric acid ester of cellulose or a crosslinked polysaccharide. The method can provide highly purified Japanese encephalitis virus, which is useful for obtaining an effective vaccine against Japanese encephalitis.
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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 March 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 2006.
- 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.