Ozone generation
CA 2048516 A1 · Owner: Edwards, Neil · Inventors: Edwards, Neil; Scholey, Neil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ozone is generated in an electrolysis cell using an anode which comprises at least one of tungsten titanium, tantalum and, niobium, and a catalytic area especially of platinum. Good, electrode stability and relatively high yields of ozone may be achieved.
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 7, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 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.