Method for sterilisation and cleaning of water supply systems, in particular in swimming and bathing pool units and device for carrying out the same
CA 2475443 C · Owner: P & W Invest Vermogensverwal Tungsgesellschaft Mbh · Inventors: Polak, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for sterilisation and cleaning of water supply systems and areas in , particular in treatment plants, pipe systems and in swimming and bathing pool units and a device for carrying out the same are disclosed. An embodiment of said method is characterised by the steps: (1) establishment of a closed circuit between two points of the water supply system or the water supply area, (2) introduction of a given amount of a disinfecting material in the form of an aqueous rinsing solution comprising a chlorine oxide, a halogen and/or a peroxide for disinfection and cleaning (3) disinfection and cleaning of the pipes filters and , filtration materials in the system including charcoal …
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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 January 14, 2003 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.