Preparation of cells for production of biologicals
CA 2316739 C · Owner: Solvay Biologicals B.V. · Inventors: Brands, Rudi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method for the preparation of cells for use in the production of biologicals, by culturing cells up till a desired cell volume of a preproduction batch, where after in a repeated discontinous process: a) part of the cells of the preproduction batch is used for the preparation of at least one production batch and b) the remaining part of the , cells of the preproduction batch is used as a seed for the preparation of at least one subsequent preproduction batch.
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 December 17, 1998 and granted June 21, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2020.
- 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.