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Canadian application, no grantCanada

Improved methods and processes for iodine disinfection

CA 2416759 A1 · Owner: Woodhouse, John · Inventors: Woodhouse, John; Klein, Peter Morris Gilbert

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

An iodine purification process comprising; a source of fluid; means for delivery of iodine to the source of fluid for use in the purification process; the process further comprising means for recovery of the iodine and/or iodine and /or other iodine species derived from the iodine from said fluid.

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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 20, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2023.
  • 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 20, 2001
GrantedNo grant recorded
Term endedJuly 20, 2021
Patent numberCA 2416759 A1
Classification (IPC)C02F1/50 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJuly 20, 2001Term endedJuly 20, 2021

Sources & verification

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