Cell culture systems and media
CA 2018228 C · Owner: Organogenesis, Inc. · Inventors: Maresh, John Gregory; Meunier, Susan F.; Johnson, Eric W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides systems methods and, chemically defined media for the cultivation of cells particularly epithelial cells. Cells may be cultured with a varied calcium concentration. Furthermore a calcium, concentation in excess of 1.00mM may be used in the practice of the present invention without loss of a proliferative cell population and maintianing high colony forming efficiencies. Population doubling times range from about 16 to about 33 hours. Cells may serially cultivated to achieve from about 20 to about 50 population doublings.
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 June 4, 1990 and granted February 27, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 4, 2012.
- 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.