Process for coating glass
CA 2000266 A1 · Owner: Pilkington Plc · Inventors: Hargreaves, Edward; Grundy, Barry T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for Coating Glass, A process for coating a moving ribbon of hot glass by chemical vapour deposition comprises establishing a first flow of a first reactant gas along the hot glass surface substantially parallel to the direction of movement of the glass establishing a, second flow of a second reactant gas as a turbulent flow at an angle to the glass surface, introducing said second flow into said first flow at said angle, while avoiding upstream flow of said second reactant gas in said first flow directing the combined gas, flow along the surface of the hot glass as a turbulent flow and, thereafter withdrawing the used coating gas away from the hot glass. The process enables a …
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 October 6, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 6, 2011.
- 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.