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Canadian application, no grantCanada

Nucleic acid sensor

CA 2255952 A1 · Owner: Lucas, Sally Wright · Inventors: Harding, Margaret; Braach-Maksvytis, Vijoleta Lucija Bronislava; Lucas, Sally Wright

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention provides biosensors and methods for the detection selected nucleic acid sequences. In one form the biosensor comprises an electrode and a bilayer membrane having a top and a bottom layer. The bottom layer being proximal to and connected to the electrode in a manner such that a space exists between the membrane and the electrode with the conductance or , impedance of the membrane being dependent on the presence or absence of the selected nucleic acid sequence. The membrane comprises a closely packed array of amphiphilic molecules and a plurality of ion channels comprising first half membrane spanning monomers dispersed in the top layer and second half membrane …

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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 May 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 22, 1997
GrantedNo grant recorded
Term endedMay 22, 2017
Patent numberCA 2255952 A1
Classification (IPC)G01N27/32

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMay 22, 1997Term endedMay 22, 2017

Sources & verification

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