Process for preparing blast furnace cokes
CA 1075900 A · Owner: Sumikin Coke Company Limited · Inventors: Kiritani, Yoshio; Tsuyuguchi, Michio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title of the Invention:, Process for Preparing Blast Furnace Cokes Abstract of the Disclosure:, A process for preparing blast furnace cokes which comprises steps of adding a desired binder to a coal making briquettes which consists of a substantially lowcoal, such as non-and/or poorly-coking coal alone or a blend of about 40% or more of said low-grade coal and a charging coal: mixing; briquetting in a roll press to form briquettes of two or more shapes; preparing a blended charging coal by blending the resulting briquettes of different shapes to a charging coal in a total amount of about 35% or more of said briquettes based on said charging coal; and about carbonizing said blended charging …
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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
- Granted April 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 1997.
- 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.