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Canadian application, no grantCanada

Metal-containing dna

CA 2218443 A1 · Owner: Aich, Palok · Inventors: Lee, Jeremy S.; Aich, Palok

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 invention provides a DNA molecule comprising a metal-containing DNA molecule, an electron donor electrically coupled to a first end of the metal-containing DNA duplex and an electron-acceptor electrically coupled to a second end of the metal-containing DNA duplex, the metal-containing DNA duplex comprising a divalent metal cation substituted for the imino protons of a DNA base selected from the group consisting of thymine and guanine, the divalent metal cation being selected from the group consisting of Zn2+ Co2+, and Ni2+.

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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 December 16, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 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.
FiledDecember 16, 1997
GrantedNo grant recorded
Term endedDecember 16, 2017
Patent numberCA 2218443 A1
Classification (IPC)C07H21/04 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 16, 1997Term endedDec 16, 2017

Sources & verification

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