Human interferon-.beta.2a and interferon-.beta.2b; vectors containing genes coding for said interferons: cell lines producing same and use of said interferons as pharmaceuticals
CA 1341369 C · Owner: Revel, Michel · Inventors: Revel, Michel; Zilberstein, Asher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Human interferon-beta2A and interferon-beta2B are produced in purified form by recombinant DNA techniques. Two separate human genes have been identified which code for the production of IFN-.beta.2A and IFN- .beta.2B, respectively. The sequence of IFN-.beta.2A cDNA is established. These genes and cDNA have been cloned into mammlian cells with an SV40 early promoter sequence and such genomic clones are capable of producing IFN-.beta.2A and IFN-.beta.2B. The antaviral activity of such recombinant IFN-.beta.2A and IFN-.beta.2B is demonstrated as well as other biological activity identifying them as human interferons. It has been shown that IFN-.beta.2 secretion is induced in human cells by …
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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 June 18, 2002. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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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.