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Canadian application, no grantCanada

Yeast cell surface of proteins having enhanced properties

CA 2859225 A1 · Owner: The Board Of Trustees Of The University Of Illinois · Inventors: Kieke, Michele C.; Kranz, David M.; Shusta, Eric

CIPO record

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Abstract From the Canadian patent

The present invention provides a method for selecting proteins with one or more , enhanced phenotypic properties of surface expression level stability, secretion levels and , solubility relative to those of a wild-type of said protein. Yeast cells are transformed with a , vector expressing a protein to be tested fused to a yeast cell wall protein. Mutagenesis is used , to a generate a variegated population of mutants of the protein to be tested. The yeast cells , are labeled with a first label which associates with yeast expressing the protein having one or , more enhanced phenotypic properties of surface expression level stability, secretion levels , and solubility and does not …

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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 January 20, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 20, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 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.
FiledJanuary 20, 1999
GrantedNo grant recorded
Term endedJanuary 20, 2019
Patent numberCA 2859225 A1
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJan 20, 1999Term endedJan 20, 2019

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