Labelling reagents, method for synthesis of said reagents and methods for detecting biological molecules
CA 2444918 C · Owner: Universite Joseph Fourier (Grenoble 1) · Inventors: Kotera, Mitsuharu; Lhomme, Jean; Laayoun, Ali
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a temperature-stable labelling reagent of formula (I) wherein: R?1¿ represents H or an alkyl aryl or substituted aryl group; R?2¿ represents a detectable marker or at least two detectable markers linked together by at least a multimeric structure; L is a linking arm comprising a linear catemer concatenation of at least two covalent bonds; and n is an integer equal to 0 or 1; R?3¿ and R?4¿ represent independently of each other: H, NO¿2?, Cl Br, F, I, R?2¿-(L)¿n?-Y-X-, OR, SR, NR¿2? R, NHCOR, CONHR, COOR with R = alkyl or aryl A is a linking arm comprising at least a double bond enabling the conjugation of the diazo function with the aromatic cycle; and u is a whole …
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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 May 3, 2002 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 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.