Low shading coefficient and low emissivity coatings and coated articles
CA 2390404 A1 · Owner: Finley, James J. · Inventors: Criss, Russell C.; Medwick, Paul A.; Finley, James J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a low emissivity low shading , coefficient, low reflectance multilayer coating and coated article having a visible light transmittance of greater than about 50 % preferably greater , than about 55 %, a shading coefficient of less than about 0.33 and an exterior reflectance of less than about 30 %. The coated article e.g. an IG unit, has , a substrate with a first antireflective layer deposited over the substrate. A first infrared reflective layer is deposited over the first antireflective layer and a first primer layer is deposited over the first infrared reflective layer. A second antireflective layer is deposited over the first primer layer and a …
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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 November 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 20, 2022.
- 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.