19-substituted progesterone derivatives useful as 19-hydroxylase inhibitors
CA 1321578 C · Owner: Johnston, J. O'Neal · Inventors: Johnston, J. O'Neal; Holbert, Gene W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
19-Substituted progesterone derivatives and related compounds which are active as 19-hydroxylase inhibitors and useful as antihypertensive agents are described herein. The compounds are prepared using appropriate synthetic pathways which will vary according to the nature of the specific 19substituted progesterone or related compound desired. MO1325
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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
- Granted August 24, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 24, 2010.
- 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.