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Expired Canadian patentCanada

Arrangement for dry cooling of coke

CA 1189013 A · Owner: Krupp-Koppers G.M.B.H. · Inventors: Jakobi, Wilhelm

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An arrangement for dry cooling of coke has a prechamber for a coke to be cooled with a prechamber wall a cooler with a coller wall, a plurality of connecting members connecting these walls with each other so that a cool-, ing gaseous medium can pass between the connecting members and a plurality of throttling elements arranged between the connecting members and actuated from outside of the walls.

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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 June 18, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 16, 1981
GrantedJune 18, 1985
Term endedJune 18, 2002
Patent numberCA 1189013 A
Classification (IPC)C10B39/02

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedDec 16, 1981Patent grantedJune 18, 1985Term endedJune 18, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.