In-line system for ozone sanitation
CA 2399784 A1 · Owner: Praxair Technology, Inc. · Inventors: Ribeiro, Sergio Roberto Rodrigues; Bon, Paulo Sergio; Pareja, Henrique Armando Langaro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surface is sanitized by manufacturing a gaseous stream of ozone from oxygen having a purity of at least 90 vol.%, and injecting it directly into a stream of water having a pH of 6.5 - 7.5, feeding said aqueous solution of ozone into a tank which maintains a gaseous atmosphere comprising ozone over the solution applying, said aqueous solution of ozone from said tank onto a surface to be sanitized; and recovering water from said surface and recycling it to said source.
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 August 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2024.
- 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.