Lhrh antagonists having modified aminoacyl residues at positions 5 and 6
CA 2136079 A1 · Owner: Abbott Laboratories · Inventors: Greer, Jonathan; Sauer, Daryl R.; Haviv, Fortuna
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A class of potent LHRH decapeptide antagonists possess N-alkylated aminoacyl residues where the side-chain portion of the residue is a 4-(substituted-amino)phenylalanyl 4-(substituted-amino)cyclohexylalanyl, or .OMEGA.-(substituted-amino)alkyl group, and additionally the aminoacyl residues at position 5 are N-alkylated on the nitrogen atom of the peptide backbone.
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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 December 14, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 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
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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.