Stable oxidizing bromine formulations, methods of manufacture thereof and methods of use for microbiofouling control
CA 2329896 A1 · Owner: Nalco Chemical Company · Inventors: Yang, Shunong; Mccoy, William F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Stable oxidizing biocide formulations containing bromine are provided for biofouling control in industrial water systems. The formulations contain at least one stable oxidizing bromine compound that is prepared from at least one oxidizing chemical reagent, at least one bromine source and at least one bromine or halogen stabilizer. The resulting products are a mixture of stable oxidizing bromine compounds that can be used as a primary or secondary biocide in an industrial water system.
Read the whole patent
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 April 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.