Mold additive for continuous casting of steel
CA 1324239 C · Owner: Shinagawa Refractories Co. Ltd. · Inventors: Ichikawa, Kenji; Kawabe, Yoichiro; Fujiwara, Hideaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mold additive suitable for use in a mold for continuous casting of steel which comprises as its base, material, at least 50% by weight of synthetic calcium silicate which contains CaO and SiO2 in a total amount not less than 70% by weight, and whose CaO/SiO2 ratio is not lower than 1.20. A mold additive of low bulk density and superior in heat insulation can be obtained and its CaO/SiO2 ratio can be widely adjusted.
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
- Granted November 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 2010.
- 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.