Chemically specific surfaces for influencing cell activity during culture
CA 1201400 A · Owner: Becton, Dickinson And Company · Inventors: Dunn, Terry S.; Williams, Joel L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cell culture activity on the surface of the substrate is influenced by varying surfaces in contact with the cell membrane. In particular plasma modification processes are used to provide specific chemical functional groups, elemental ratios and other surface properties. In the method of the invention for influencing the growth of cell culture in a growth media on a substrate the surface chemistry of the substrate is modified by subjecting the surface of the substrate to a plasma which is produced from a material selected from the group consisting of carbon, hydrogen osygen, nitrogen, sulfur, phosphorus, halogens and compounds thereof.
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
- Granted March 4, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 2003.
- 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.