Isolation of differentiated cells
CA 1109813 A · Owner: The Regents Of The University Of California · Inventors: Pictet, Raymond; Rutter, William J.; Chirgwin, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a method for isolating a population of differentiated cells from a tissue of a differentiated organism for the further purpose of extracting therefrom mRNA enriched with respect to a specific nucleotide sequence coding for a specific protein. The desired cell population is released from the tissue along with other cells present in the tissue by treatment of the tissue with a hydrolytic enzyme capable of selectively degrading connective tissue without damaging the desired cells and the desired cells are separated from other cell types by a centrifugation procedure and further purified by manual manipulations.
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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
- Granted September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
- 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.