Biomass for producing virus/virus antigen
CA 2073168 C · Owner: Mundt, Wolfgang · Inventors: Eibl, Johann; Dorner, Friedrich; Mundt, Wolfgang
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 biomass for producing virus/ virus antigen, which consists of cell aggregates having diameters of between 100 µm and 1,000 µm. The biomass according to the invention has a high metabolic activity in suspension in the culture medium and is infected with virus. It enables the large-scale production of pure virus/virus antigen and is particularly suitable for the production of TBE-virus/ virus antigen.
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 January 3, 1991 and granted April 27, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 2013.
- 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.