Orally administered solvent-free pharmaceutical preparation with delayed active-substance release, and a method of preparing the preparation
CA 2093666 C · Owner: Schwarz Pharma Ag · Inventors: Mika, Hans-Jurgen; Schmidt, Rainer; Sczepanik, Bernhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The pharmaceutical preparation disclosed comprises a solvent-free chilled-melt granular material containing at least one fusible active ingredient and at least one fusible auxiliary. The preparation can be used for all the forms of medication claimed and in the therapy of illnesses.
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 October 7, 1991 and granted May 19, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 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.