Continuous low-dose cytokine infusion therapy
CA 2329474 C · Owner: Affrime, Melton B. · Inventors: Affrime, Melton B.; Cutler, David L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chronic hepatitis C antiviral pharmaceutical composition comprises an antivirally effective amount of a polymer-cytokine conjugate in association with a pharmaceutically acceptable carrier the cytokine may be, for example, interferon alpha or interferon alpha-2b and the polymer of the conjugate may be for example, polyethylene glycol.
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 October 31, 1996 and granted February 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2018.
- 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.