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A variant human alpha-7 acetylcholine receptor subunit, and methods of production and use thereof

CA 2275180 A1 · Owner: Abbott Laboratories · Inventors: Roch, Jean-Marc; Touma, Edward; Briggs, Clark A.

CIPO record

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Abstract From the Canadian patent

A variant human .alpha.7 nicotinic acetylcholine receptor (nAChR) polypeptide is provided wherein the variant contains an amino acid substitution at the valine-274 position of the wild-type human .alpha.7 nAChR. Nucleic acid molecules encoding the variant human .alpha.7 nAChR vectors and host cells , containing such nucleic acid molecules are also provided. In addition methods , are provided for producing the variant as are methods of using such variants for screening compounds for activity at the nAChR.

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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 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2019.
  • 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 22, 1997
GrantedNo grant recorded
Term endedDecember 22, 2017
Patent numberCA 2275180 A1
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 22, 1997Term endedDec 22, 2017

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