Liposomes containing a cisplatin compound
CA 2263455 C · Owner: Alza Corporation · Inventors: Reis, Karen; Abra, Robert M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liposome composition containing an, entrapped cisplatin compound is described. The liposomes have a surface coating of hydrophilic polymer chains on inner and outer surfaces and an entrapped cisplatin compound. The compound is entrapped, with substantially greater retention in the liposomes, when compared to liposomes, lacking the polymer coating. A method of preparing the composition is also described.
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 August 19, 1997 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 19, 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.