Process for producing an ion storage layer for electrochromic systems
CA 2265190 A1 · Owner: Wehrmann, Rolf · Inventors: Jonas, Friedrich; Wehrmann, Rolf; Heuer, Helmut-Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for producing an ion storage layer from vanadium oxide or niobium oxide, or, from a vanadium oxide or niobium oxide comprising lithium ions for an , electrochromic, layer system, in which the ion storage layer is produced from an aqueous solution on a substrate by a sol-gel process within a temperature range from 40 to, 150°C.
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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 March 10, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 10, 2021.
- 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.