Combination of calcium antagonists with cholinesterase inhibitors
CA 2081808 A1 · Owner: Troponwerke Gmbh & Co. Kg · Inventors: De Jonge, Maarten
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Combination of calcium antagonists with cholinesterase inhibitors, A b s t r a c t, The memory-improving effect of cholinesterase inhibitors can be significantly improved by combination with calcium antagonists. The combinations can be used in medicaments for the treatment of senile dementia in, particular of the Alzheimer type. TP 100
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 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2014.
- 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.