Renin inhibitors
CA 2050434 A1 · Owner: Albright, Jay D. · Inventors: Albright, Jay D.; Sum, Fuk-Wah
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
31,287-00, RENIN INHIBITORS, ABSTRACT, Renin inhibiting compounds containing a single .alpha.-amino acid of the formula:, wherein R1 is a phosphorus containing moiety W is oxygen, or NR3 and A is moiety selected from those of the formula:, ;, wherein Z is O, S, SO, SO2 and p is an integer from 1 to 2; and, when W is oxygen, R1 may be hydrogen and A may also be a moiety of the formula, ; , and analogs thereof which compounds inhibit the substrate-cleaving action of renin, pharmaceutical compositions containing these compounds processes for, producing the compounds and methods of treating hypertension which employ the novel renin inhibitors.
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 30, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2013.
- 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.