Transgenic mammals
CA 2297105 A1 · Owner: Takahagi, Yoichi · Inventors: Shigehisa, Tamotsu; Fujimura, Tatsuya; Takahagi, Yoichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Transgenic non-human mammals which have a human complement regulator (DAF/CD55) gene and in which this regulator has been expressed in the organs and tissues, in particular, vascular endothelial cells. These transgenic mammals are useful as laboratory animals in the fields of medicine pharmacy, etc. and/or sources for organs tissues, cells, etc. to be used in treating humans.
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 June 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 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.
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.