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Canadian application, no grantCanada

Protection from ionizing irradiation or chemotherapeutic drug damage by in vivo gene therapy

CA 2331569 A1 · Owner: Greenberger, Joel S. · Inventors: Greenberger, Joel S.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method of protecting a subject against an agent that elicits production of toxic free radicals, superoxide anions or heavy metal cations in the subject is disclosed which entails in vivo administration to the subject of a polynucleotide encoding a protein that is transiently expressed in said subject. The transiently expressed protein is capable of neutralizing or eliminating the toxic free radicals, superoxide anions or heavy metal cations that are elicited by the agent. The method is particularly useful in preventing the development of esophagitis during treatment of lung cancer patients with ionizing radiation and/or chemotherapeutic drugs.

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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 May 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 7, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 7, 1999
GrantedNo grant recorded
Term endedMay 7, 2019
Patent numberCA 2331569 A1
Classification (IPC)A61K48/00

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMay 7, 1999Term endedMay 7, 2019

Sources & verification

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