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Canadian application, no grantCanada

Protein secretion from bacteria having reduced expression of a product encoded by the dlt operon

CA 2336710 A1 · Owner: Kontinen, Vesa · Inventors: Hyyrylainen, Hanne-Leena; Stephenson, Keith; Sarvas, Matti

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The invention relates to a novel prokaryotic expression system characterised by alterations to the dlt operon whereby expression of genes encoded therein may be regulated to limit the availability of polypeptides encoded by said genes.

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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 July 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 8, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 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.
FiledJuly 8, 1999
GrantedNo grant recorded
Term endedJuly 8, 2019
Patent numberCA 2336710 A1
Classification (IPC)C12N15/67 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 8, 1999Term endedJuly 8, 2019

Sources & verification

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