Guanidinium transport reagents and conjugates
CA 2469336 C · Owner: Pelkey, Erin T. · Inventors: Jessop, Theodore C.; Rothbard, Jonathan B.; Pattabiraman, Kanaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Transport reagents and conjugates of therapeutic agents linked to transport reagents are described. In particular, the transport reagents have a plurality of guanidinium moieties that are either contiguous or spaced along a backbone but are sufficiently removed from the backbone via tethers to allow their , interaction with a cell or tissue surface leading to uptake of the , therapeutic agent.
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 December 11, 2002 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2024.
- 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.