Administration of acetylcholinesterase inhibitors to the cerebral spinal fluid
CA 2482161 A1 · Owner: Quay, Steven C. · Inventors: Quay, Steven C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and compositions are disclosed that provide acetylcholinesterase inhibitors for the prevention and treatment of diseases and disorders of the central nervous system, including dementia such as Alzheimer's disease to the , central nervous system via intranasal delivery. The methods and compositions of the present invention provide therapeutic concentrations of the acetylcholinesterase inhibitor in the cerebrospinal fluid of a mammal without the attendant disadvantages, risks and side effects of oral or injection delivery.
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 May 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 19, 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.