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Expired Canadian patentCanada

Methods of determining the presence of double stranded nucleic acids in a sample

CA 2384100 C · Owner: The Regents Of The University Of California · Inventors: Deamer, David W.

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Abstract From the Canadian patent

Methods for determining the presence of double stranded nucleic acids in a sample are provided. As illustrated in the figure, nucleic acids present in a fluid sample are translocated through a nanopore, e.g. by application of an electric field to the fluid sample. The current amplitude through the nanopore is monitored during the translocation process and changes in the amplitude are related to the passage of single- or double-stranded molecules through the nanopore. The subject methods find use in a variety of applications in which the detection of the presence of double-stranded nucleic acids in a sample is desired e.g. in , hybridization assays, such as Northern blot assays …

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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 September 6, 2000 and granted March 29, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 6, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 6, 2000
GrantedMarch 29, 2011
Term endedSeptember 6, 2020
Patent numberCA 2384100 C
Classification (IPC)C07H21/04 +1 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedSep 6, 2000Patent grantedMarch 29, 2011Term endedSep 6, 2020

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