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Canadian application, no grantCanada

Toxicity typing using embryoid bodies

CA 2353309 A1 · Owner: Vistagen, Inc. · Inventors: Snodgrass, H. Ralph

CIPO record

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

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Abstract From the Canadian patent

This invention provides methods and systems for identifying and typing toxicity of chemical compositions, as well as for screening new compositions for toxicity. The invention involves detecting alterations in gene or protein expression and hence establishing molecular profiles in isolated mammalian embryoid bodies contacted with various chemical compositions of known and unknown toxicities, and correlating the molecular profiles with toxicities of the chemical compositions.

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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 December 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 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.
FiledDecember 9, 1999
GrantedNo grant recorded
Term endedDecember 9, 2019
Patent numberCA 2353309 A1
Classification (IPC)C12Q1/68 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedDec 9, 1999Term endedDec 9, 2019

Sources & verification

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