Concentrated aqueous bromine solutions and their preparation
CA 2430833 A1 · Owner: Mckinnie, Bonnie G. · Inventors: Moore, Robert M. Jr.; Harkins, Alvin E. Jr.; Mckinnie, Bonnie G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Concentrated liquid biocide compositions are produced by: A) feeding (a) bromine atoms and chlorine atoms in the form of (i) one or more of BrCl (ii) , Br2, and (iii) Cl2 into (b) water containing sulfamate anions or feeding each , of (a) and (b) into a reaction vessel such that the numerical ratio of the , total number of bromine atoms fed to the total number of chlorine atoms fed is in the range of 0.7:1 to 1.7:1; and B) providing enough alkali metal base in the mixture being formed in A) to keep the pH of such mixture in the range of 7-11 during all or substantially all of time feeding in A) is occurring the , amounts of (a) and (b) used being amounts that form an …
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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 November 8, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 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.
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.