Serum-free media for chondrocytes and methods of use thereof
CA 2473360 A1 · Owner: Brown, Liesbeth Maria E. · Inventors: Brown, Liesbeth Maria E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides defined serum-free cell culture media useful in culturing fibroblasts, especially articular chondrocytes that avoids problems , inherent in the use of serum-containing media. The defined media comprise platelet-derived growth factor (PDGF), and chemically defined lipids or , combinations of these compounds. In another aspect the present invention also , provides tissue culture methods that comprise incubating chondrocytes in the defined serum free media. The methods enhance attachment and proliferative expansion of chondrocytes seeded at low density while maintaining their redifferentiation potential.
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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
- Filed January 24, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 24, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 24, 2025.
- 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.