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Expired Canadian patentCanada

Lentiviral triplex dna, and vectors and recombinant cells containing lentiviral triplex dna

CA 2382832 C · Owner: Sirven, Aude · Inventors: Dubart Kupperschmitt, Anne; Zennou, Veronique; Pflumio, Francoise

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Abstract From the Canadian patent

The present ivention provides nucleic acid vectors, viruses, and recombinant , cells comprising triple-stranded structures such as those resulting from , central initiation and termination of HIV-1 reverse transcription at the center of HIV-1 linear DNA genomes. These triplex structures can act as a cisdeterminant of HIV-1 DNA nuclear import allowing infection of non-dividing , target cells. In one aspect the presence of the DNA triplex sequence in an HIV vector strongly stimulates gene transfer in hematopoietic stem cells. The invention also provides methods of using these triplex structures for making recombinant cells, as well as methods of using the recombinant cells to express …

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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 October 10, 2000 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 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.
FiledOctober 10, 2000
GrantedJune 26, 2012
Term endedOctober 10, 2020
Patent numberCA 2382832 C
Classification (IPC)C12N15/86 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedOct 10, 2000Patent grantedJune 26, 2012Term endedOct 10, 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.