Stable solid pharmaceutical compositions containing enalapril maleate
CA 2128199 C · Owner: Sherman, Bernard Charles · Inventors: Sherman, Bernard Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Enalapril maleate is unstable when associated with many excipients commonly used in the manufacture of pharmaceutical compositions. Stable solid compositions are provided by mixing enalapril maleate into a carrier that is comprised primarily of water-soluble carbohydrates and contains a lubricant other than magnesium stearate a preferred lubricant being zinc stearate.
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 15, 1994 and granted February 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 15, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2016.
- 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.