Surface alloyed high temperature alloys
CA 2357232 A1 · Owner: Wysiekierski, Andrew George · Inventors: Fisher, Gary Anthony; Wysiekierski, Andrew George; Mandyam, Radhaskrishna Chakravarthy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a surface alloyed component which comprises a base alloy with, a diffusion barrier layer enriched in silicon and chromium being provided adjacent, thereto. An enrichment pool layer is created adjacent the diffusion barrier and contains, silicon and chromium and optionally titanium or aluminum. The method comprises depositing a surface alloy on the base alloy at a temperature in the range of 400 to 1000°C, and heat treating the surface alloy at a ramp temperature rate of at least 5C°/minute, preferably 10 to 20°C/minute to a desired maximum temperature at which the surface, alloyed component is maintained for a time sufficient to provide the enrichment pool or, the …
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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 May 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 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.