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Canadian application, no grantCanada

Method for inhibiting the growth of microorganisms in an aqueous medium

CA 2207172 A1 · Owner: Montana State University · Inventors: Moore, Christopher Peter; Batts, Gregory Nigel; Leeming, Karen

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

A method for inhibiting the growth of, microorganisms in an aqueous medium comprises contacting the aqueous medium with a permeable body comprising material which interacts with the microorganisms. Such interaction involves a change in the chemical structure of the material resulting from the action of one or more of the microorganisms. The permeable body may take the form of a permeable bag containing plant fibres and may be used for the treatment of photoprocessor wash waters.

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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 6, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 6, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 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.
FiledJune 6, 1997
GrantedNo grant recorded
Term endedJune 6, 2017
Patent numberCA 2207172 A1
Classification (IPC)C12N1/02 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJune 6, 1997Term endedJune 6, 2017

Sources & verification

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