Cytotoxic drug conjugates for treatment of neoplastic diseases
CA 2101809 A1 · Owner: Razeq, Jafar · Inventors: Razeq, Jafar; Abu-Hadid, Mahmoud M.; Mayers, George L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A novel composition of matter comprising a ligandcarbohydrate-cytotoxic drug conjugate is produced by the steps of (1) reacting a carbohydrate with a ligand (2) reacting the, product of step (1) with a cytotoxic drug and (3) stabilizing, the product of step (2) by reduction. The composition is used for treating a neoplastic disease by a process of administering a non-toxic, effective amount of a ligand-carbohydrate-cytotoxic drug conjugate to a human being or animal in need of such a treatment.
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 3, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 3, 2015.
- 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.