Skid rail alloy
CA 2035618 A1 · Owner: Inco Alloys International, Inc. · Inventors: Iikubo, Tomohito; Tsukuta, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A novel oxide-dispersion strengthened type heatresistant alloy is provided for use of preparing furnace members such as a skid rail. The alloy consists essentially of up to about 0.2% C + N, up to about 2.0% Si up to about 2.0% Mn, about 15 to 35% W and about 0.2 to 4% Ta, and the balance of Fe, and contains about 0.1-2% of fine particles of high melting point metal oxide such as Y2O3 dispersed in the austenite matrix. The alloy exhibits ecxellent properties of anti-hot deformation, oxidation resistance, abrasion resistance and thermal shock resistance.
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 February 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2013.
- 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.