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Expired Canadian patentCanada

Method for expression of small antiviral rna molecules within a cell

CA 2457282 C · Owner: Baltimore, David · Inventors: Lois-Caballe, Carlos; Qin, Xiao-Feng; Baltimore, David

CIPO record

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Abstract From the Canadian patent

In ones aspect, the invention provides methods and compositions for the expression of small , RNA molecules within a cell using a retroviral vector. The methods can be used to express , double stranded RNA complexes. Small interfering RNA (siRNA) can be expressed using the , methods of the invention within a cell that interfere with a viral life cycle by down regulating , either the viral genome a viral genome transcript, or viral replication in a host cell. In another , aspect, the invention provides methods for treating patients suffering from infection, particularly , infection with HIV.

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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 13, 2002 and granted January 13, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 13, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 13, 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.
FiledSeptember 13, 2002
GrantedJanuary 13, 2015
Term endedSeptember 13, 2022
Patent numberCA 2457282 C
Classification (IPC)C12N15/86 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedSep 13, 2002Patent grantedJan 13, 2015Term endedSep 13, 2022

Sources & verification

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