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Canadian application, no grantCanada

Freeze-tolerant eukaryotic cells

CA 2446022 A1 · Owner: Tanghe, An · Inventors: Tanghe, An; Thevelein, Johan; Van Dijck, Patrick

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

The present invention relates to the use of proteins facilitating water diffusion or water transport through the cell membrane preferably aquaporin , or aquaporin related proteins to obtain freeze-tolerant eukaryotic cells preferably yeast cells or plant cells. It relates further to a method for obtaining such cells, and to freeze-tolerant cells characterized by an , enhanced expression level of proteins facilitating water diffusion or water transport through the cell membrane.

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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 3, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 3, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2024.
  • 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 3, 2002
GrantedNo grant recorded
Term endedMay 3, 2022
Patent numberCA 2446022 A1
Classification (IPC)C12N15/82 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMay 3, 2002Term endedMay 3, 2022

Sources & verification

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