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Canadian application, no grantCanada

Use of the repressor glxr for the synthesis of lysine in corynebacterium glutamicum

CA 2484955 A1 · Owner: Haefner, Stefan · Inventors: Lee, Heung-Shick; Zelder, Oskar; Haefner, Stefan

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

Isolated polypeptide sequence having the sequence of SEQ ID NO:1 or muteins thereof having the ability to bind cAMP and repress the expression of the aceB gene of C. glutamicum and which can be obtained from SEQ ID NO:1 by inserting deleting or substituting up to 20% of the amino acids.

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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 13, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 13, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2025.
  • 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 13, 2003
GrantedNo grant recorded
Term endedMay 13, 2023
Patent numberCA 2484955 A1
Classification (IPC)C12N15/31 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMay 13, 2003Term endedMay 13, 2023

Sources & verification

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