Method of making transparent pyrolytic copper oxide coating on a glass surface
CA 2074043 A1 · Owner: Schulz, Stephen C. · Inventors: Brown, Franklin I.; Schulz, Stephen C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Low transparency or colored, copper oxide is taught, as a new electrochromic material in combination with a, metallic oxide. The material is formed by application of the copper oxide to a substrate followed by application of the metallic oxide. A low-E glass substrate is heated, and cupric acetylacetonate powder is sprayed at the glass; the cupric acetylacetonate powder is atomized with dry oxygen. The glass /SNO2F/CUXO system is then reheated. After reheating, tungsten hexachloride dissolved in N, N-dimethyl formamide is sprayed at the copper oxide on the substrate. In a sample material visible, transmission is improved from 33% for copper oxide alone to 65%.
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 July 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2014.
- 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.