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Expired Canadian patentCanada

Materials and methods for inhibition of respiratory syncytial virus infection

CA 2484251 C · Owner: Behera, Aruna K. · Inventors: Behera, Aruna K.; Mohapatra, Shyam S.

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Abstract From the Canadian patent

The subject invention concerns a method of inhibiting an RNA virus infection within a patient by increasing the amount of 2-5 oligoadenylate (2-5 AS) activity within the patient. Preferably the preventive and therapeutic , methods of the present invention involve administering a nucleotide encoding 2- 5 AS, or at least one catalytically active fragment thereof such as the p40, p69, p100 subunits to a patient in need thereof. The present inventors have determined that overexpression of 2-5AS causes a reduction in epithelial cell damage, reduction in infiltration of mononuclear cells in the peribronchiolar and perivascular regions, and reduction in thickening of the septa in the lungs. …

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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 April 30, 2003 and granted June 23, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 30, 2003
GrantedJune 23, 2015
Term endedApril 30, 2023
Patent numberCA 2484251 C
Classification (IPC)C12N15/54 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedApril 30, 2003Patent grantedJune 23, 2015Term endedApril 30, 2023

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