Neurological therapy system
CA 2062746 C · Owner: Brown University Research Foundation · Inventors: Aebischer, Patrick; Winn, Shelley R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Neurological therapy devices are disclosed for the local and controlled delivery of a neurotransmitter to the brain of a subject suffering from neurotransmitter deficiency of dysfunction. In one embodiment the device (100) includes a biocompatible implantable, and retrievable polymeric insert (30) including a source of neurotransmitter embedded therein. In another embodiment the device (200) includes a retrievable source of neurotransmitter including at least one neurotransmitter-secreting cell (52) encapsulated within a semipermeable membrane allowing the diffusion therethrough of the neurotransmitter and further includes, a source of growth factor in close proximity to the …
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 June 20, 1990 and granted February 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 2012.
- 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.