Recombinant dna sequences, vectors containing them and methods for the use thereof
CA 1338901 C · Owner: Celltech Limited · Inventors: Bebbington, Christopher Robert; Wilson, Richard Harris
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides recombinant DNA sequences which encode the complete amino acid sequence of a glutamine synthetase, vectors containing such sequences, and methods for their use, in particular as dominant selectable markers for use in co-amplification of non-selected genes and in transforming host cell lines to glutamine independence.
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 February 11, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2014.
- 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.