Hot working high-chromium alloy
CA 2249835 A1 · Owner: Suarez, Francis Sardovia · Inventors: Mankins, William Lawrence; Suarez, Francis Sardovia; Camus, Donald Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hot working a nickel-chromium alloy that contains by weight percent 42 to 65, chromium, 0.002 to 0.1 calcium 0.002 to 0.1 magnesium, 0 to 2 aluminum about 0 to 5, cobalt, 0 to 3 copper, 0 to 5 iron 0 to 5 manganese, 0 to 3 molybdenum, 0 to 3 niobium 0, to 2 silicon, 0 to 3 tantalum, 0 to 5 titanium 0 to 5 tungsten, 0 to 5 vanadium, 0 to 1 zinc 0 to 0.2 carbon 0 to 0.1 silver, 0 to 0.1 cerium 0 to 0.1 phosphorus, 0 to 0.1 sulfur, less than 0.005 total boron, rare earths and zirconium and balance nickel and incidental impurities, at a temperature of at least 800°C improves formability for .alpha.-phase chromium alloys.
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 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2020.
- 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.