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Canadian application, no grantCanada

A novel gene and method of treating a gram negative bacterial infection

CA 2330544 A1 · Owner: Heinrichs, David E. · Inventors: Heinrichs, David E.; Yethon, Jeremy A.; Whitfield, Chris

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

Described are a novel gene (waaP) and a protein (WaaP) which has an enzymatic activity that is involved in heptose modification in the lipopolysaccharide of bacterial membranes. Also described is a method and series of compounds which are active against bacterial pathogens wherein the method comprises the administration of sufficient amount of an inhibitor of WaaP protein activity in gram negative bacteria.

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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 June 11, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 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.
FiledJune 11, 1999
GrantedNo grant recorded
Term endedJune 11, 2019
Patent numberCA 2330544 A1
Classification (IPC)C12N15/54 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJune 11, 1999Term endedJune 11, 2019

Sources & verification

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