Dual binding site acetylcholinesterase inhibitors for the treatment of alzheimer's disease
CA 2501491 A1 · Owner: De Austria, Celia · Inventors: Alonso Gordillo, Diana; Dorronsoro Diaz, Isabel; Rubio Arrieta, Laura
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A family of compounds of formula (I) wherein: X is one of the following radicals: (a), (b), (c) which behaves as dual site acetylcholinesterase inhibitors and which are especially useful for the treatment of cognitive disorders as senile dementia, cerebrovascular dementia mild cognition , impairment, attention deficit disorder and/or neurodegenerative dementing , disease with aberrant protein aggregations as specially Alzheimer~s disease Parkinson disease, ALS, or prion diseases as Creutzfeldt-Jakob disease or , Gerstmann-Straussler-Scheinher disease.
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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, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2025.
- 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.