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Artificial synapse chip interface for electronic prosthetic retina

CA 2451580 A1 · Owner: The Board Of Trustees Of The Leland Stanford Junior University · Inventors: Blumenkranz, Mark; Bent, Stacey Francine; Fishman, Harvey A.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention provides microfabricated devices and methods for directing the growth of a cell process to form an artificial synapse. The devices are called artificial synapse chips. The artificial synapse comprises a nanofabricated aperture (about 50-100 nm in size) that connects the cell process to a chemical or electrical means of neuronal excitation. Such an aperture width mimics the length scales of a natural synapse and thus emphasizes the localized spatial relationship between a neuron and a stimulation source. The invention further provides devices and methods for regenerating a nerve fiber into an electrode. The invention thus provides a regeneration electrode that uses a …

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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 June 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 25, 2002
GrantedNo grant recorded
Term endedJune 25, 2022
Patent numberCA 2451580 A1
Classification (IPC)C12M3/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJune 25, 2002Term endedJune 25, 2022

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.