Method for introducing cloned, amplifiable genes into eucaryotic cells and for producing proteinaceous products
CA 1214127 A · Owner: The Trustees Of Columbia University · Inventors: Axel, Richard; Roberts, James M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multiple copies of a foreign DNA I coding for the production of a protein may be introduced into eucaryotic cells by cotransforming suitable cells with foreign DNA I and with foreign DNA II which includes a functionally deficient, amplifiable gene coding for a selectable or identifiable trait, preferably carried on the same DNA molecule as a foreign DNA III, which includes a functional amplifiable gene coding for another selectable or identifiable trait. The cotransformation is carried out under suitable conditions permitting selection or identification of cells expressing the gene on DNA I or that on DNA III, but not that on DNA II. The cotransformed cells so identified or selected are …
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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 November 18, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 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.