A solid drug form with a high verapamil content
CA 2026384 C · Owner: Moest, Thomas · Inventors: Moest, Thomas; Flaig, Ernst; Fricke, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A solid drug form containing, net less than 90 % by weight verapamil is produced by granulating at from 30 to 55°C with a little water drying and, where appropriate, conventional tableting or by pelleting, in which case the granules obtained as described are, after cooling, moistened once again and compacted in a granulating mixer at from 30 to 55°C and are dried.
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 September 27, 1990 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2012.
- 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.