Stable recombinant influenza viruses free of helper viruses
CA 2365813 A1 · Owner: Azzeh, Maysa · Inventors: Hobom, Gerd; Menke, Anette; Azzeh, Maysa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a recombinant influenza virus for high-yield expression of incorporated foreign gene(s) which is genetically stable in the , absence of any helper virus and which comprises at least one viral RNA segment being an ambisense RNA molecule (ambisense RNA segment) and containing one of the standard viral genes in sense orientation and a foreign recombinant gene , in anti-sense orientation or vice versa, in overall convergent arrangement. The present invention further provides a method for the production of said recombinant influenza virus, a method for constructing specific ribozymesensitive influenza carrier strains; pharmaceutical compositions comprising said …
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 March 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2022.
- 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.