Sulfimidoperoxycarboxylic acids
CA 2055643 A1 · Owner: Reinhardt, Gerd · Inventors: Jaekel, Frank; Reinhardt, Gerd; Rupp, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Sulfimidoperoxycarboxylic acids Sulfimidoperoxycarboxylic acids of the formula in which, A is a group of the formula, or , , , n is the number 0, 1 or 2, R1 is hydrogen fluorine, chlorine, bromine, C1-C20-alkyl C2-C20-alkenyl, aryl or C1-C10-alkylaryl R2 is hydrogen, fluorine, chlorine, bromine or a group of the formula SO3M, CO2M or OSOM, M is hydrogen an alkali metal or ammonium ion or the stoichiometric amount of an alkaline earth metal ion and, X is C1-C18-alkylene or ortho-, meta- or para-arylene. These sulfimidoperoxycarhoxylic acids are suitable as bleaches, oxidants or disinfectants.
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 November 15, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 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.