Electrolytic cleaning and disinfecting solution
CA 2035764 A1 · Owner: Hietala, Gerald W. · Inventors: Hietala, Gerald W.; Oksman, Henry C.; Sibley, Murray J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention, A novel aqueous solution for use in electrochemical cleaning and disinfecting is disclosed. The aqueous solution comprises hydrogen peroxide a blend of a first ionizable salt and second ionizable salt and a buffer, with the first ionizable salt being sodium chloride and the second ionizable salt including a metal of Group IA or IIA of the Periodic Table. Preferably a surfactant is included which is a non-ionic surfactant. Also the preferred, buffer is a phosphate buffer system. The preferred second ionizable salt is disclosed as being sodium sulfate. 76/1346e/1-34
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 February 6, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2013.
- 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.