Oral medicament form
CA 2109026 A1 · Owner: Bauer, Kurt · Inventors: Siefke, Verena; Bauer, Kurt; Weckenmann, Hans Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an oral medicament form comprising at least one active compound and at least one enveloping material which surrounds the active compound and comprises at least one film-forming agent which is insoluble in water and the digestive juices charac-, terized in that the enveloping material additionally comprises at least one cyclodextrin and/or at least one of its derivatives.
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 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2015.
- 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.