Stimulation of hair growth with potassium channel openers and 5alpha-reductase inhibitors
CA 2085605 C · Owner: Upjohn Company (The) · Inventors: Diani, Arthur Robert; Schostarez, Heinrich Josef; Buhl, Allen Edwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved method and composition for promoting hair growth in mammals for treating various forms of alopecia or, male pattern baldness comprising the concomitant administration of potassium channel openers, such as minoxidil, cromakalim pinacidil, or a compound selected from the classes of s-triazine thiane-1-, oxide, benzopyran and pyridinopyran compounds; and a 5.alpha.-reductase inhibitors, 17.beta.-(N-tert-butylcarbamoyl)-4-aza-5- .alpha.-androst-1-en-3-one. The method comprises administering an effective amount of the potassium channel opener and administering an effective amount of the 17.beta.-N-tert-butylcarbamoyl)-4-aza- 5-.alpha.-androst-1-en-3-one whereby the promotion of …
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 July 29, 1991 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 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.