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Canadian application, no grantCanada

Long chain carboxybetaines in antimicrobial formulations

CA 2268850 A1 · Owner: Childrens Hospital Los Angeles · Inventors: Nash, Kevin A.; Thornton, Charles G.

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

Compositions containing long chain carboxybetaines and their use in , antimicrobial formulations are described. The compositions and methods are especially useful against gram positive microorganisms such as Staphylococcus and gram negative microorganisms such as Escherichia Salmonella and , Pseudomonas.

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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 October 10, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 10, 1997
GrantedNo grant recorded
Term endedOctober 10, 2017
Patent numberCA 2268850 A1
Classification (IPC)A61K31/68 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedOct 10, 1997Term endedOct 10, 2017

Sources & verification

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