Radiolabelling
CA 2094380 C · Owner: Anormed Inc. · Inventors: Bridger, Gary James; Larsen, Scott Kenneth; Hernandez, Pedro Emilio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The ligand L. (R3)(R4)(R5)C-N(R)-C(R1)(R2)-(CH2)n-COOH L where R is hydrogen, hydroxy, alkyl, hydroxyalkyl or alkylcarboxy, or R, and R1 together may form a monodi-, tri-, or tetra-methylene radical, or R and R3 together may form a mono-, di-, trior tetra-methylene radical, and, R1 and R2 may be the same or different and are selected from hydrogen hydroxy, alkyl, hydroxyalkyl, carboxy, alkylcarboxy alkylamine, alkylthiol, aryl or R1 and R2 together may form a tetra- or penta-methylene radical and, R3 and R4 and R5 may be the same or different and are selected from hydrogen, hydroxy, alkyl, hydroxyalkyl carboxy, alkylcarboxy, provided that, at least one of R3 R4 and R5 is hydroxyalkyl, and n …
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 April 19, 1993 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 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.