Double selection vector
CA 2392827 A1 · Owner: Szpirer, Claude · Inventors: Szpirer, Claude; Gabant, Philippe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is related to a nucleic acid construct (1) to be incorporated in a double selection vector (2) able to transform a cell (3) of a specific organism, wherein- said construct (1) contains two different genes (10 and 11), each gene encoding a different toxic molecule (4 and 5) to a prokaryote cell, preferably to E. Coli said genes (10 and 11) being disposed upstream and downstream a cassette sequence (8) or downstream and upstream , site(s) for the insertion of a cassette sequence (8) and- said nucleic acid , construct comprises specific sequence portions (12 12') allowing inactivation , of said genes (10 and 11).
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 December 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2022.
- 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.