Plasmid entrapping multilamellar liposomes
CA 2200012 A1 · Owner: Kito, Mariko · Inventors: Yagi, Kunio; Ohishi, Nobuko; Kito, Mariko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plasmid entrapping multilamellar liposome for introducing a gene into cells which, liposome has constitutive lipids of TMAG; DOPC or DDPC; and DOPE or DLPE and in a molar ratio of 1: 2 - 3: 2 - 1 in case of lipid combination of TMAG DOPC and DOPE, or 1:, 2:2 in case of lipid combination of TMAG DDPC or DOPC and DLPE.
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 March 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2019.
- 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.