Genomic modifications with homologous dna targeting
CA 2092695 A1 · Owner: Smithies, Oliver · Inventors: Smithies, Oliver
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods are provided for modification of genomic target sites where desired changes which can be small or subtle may be introduced into the target site to provide for modification of target genes or regulatory sequences. It is found that one may retain a marker without interference with the functioning of a target gene or select for excision of exogenous DNA to leave a single copy of the target gene with the modification.
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 May 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 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.