Expired Canadian patentCanada
Positive-negative selection for homologous recombination
CA 2306229 C · Owner: Honold, Konrad · Inventors: Honold, Konrad; Auer, Johannes; Sprenger, Raimund
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for the introduction of a foreign DNA into the genome of a target cell by homologous recombination as well as for the homologous recombination of suitable DNA constructs.
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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
- Filed October 20, 1998 and granted March 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 20, 1998
GrantedMarch 22, 2011
Term endedOctober 20, 2018
Patent numberCA 2306229 C
Classification (IPC)C12N15/90 +2 more
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.