Coating system for high temperature stainless steel
CA 2612881 C · Owner: Manoir Industries (Societe Anonyme) · Inventors: Mendez Acevedo, Juan Manuel; Fisher, Gary Anthony; Prescott, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for protecting carbon steel and stainless steel and particularly high temperature stainless steel from coking and corrosion at elevated temperatures in corrosive environments such as during ethylene production by pyrolysis of hydrocarbons or the reduction of oxide ores by coating the steel with a coating of MCrAlX or MCrAlXT in which M is nickel cobalt, iron or a mixture thereof, X is yttrium hafnium, zirconium, lanthanum, scandium or combination thereof and T is silicon, tantalum, titanium, platinum palladium, rhenium, molybdenum, tungsten niobium, or combination thereof. The coating and substrate preferably are heat- treated at about 1000 to 1200°C for at least about 10 minutes …
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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 June 8, 2001 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2023.
- 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.