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Expired Canadian patentCanada

Strip casting unit with downstream multi-stand continuous rolling mill

CA 1320063 C · Owner: Rohde, Wolfgang · Inventors: Seidel, Jurgen; Rohde, Wolfgang

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

A process and apparatus for making hot-rolled steel strip from a striplike continuously cast starting material is described which uses successive processing steps in which the striplike cast starting material after solidification is brought to the hot rolling temperature and fed to a multi-stand rolling mill for rolling to the finished rolled product. A continuous casting unit supplies the multi-stand rolling mill. The rolling to the finished rolled product occurs continuously in three or four roll stands at maximum with the largest possible reduction per pass. The first two roll stands operate with an approximately maximum rolling moment and a large working roll diameter.

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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 July 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 13, 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.
FiledNovember 6, 1987
GrantedJuly 13, 1993
Term endedJuly 13, 2010
Patent numberCA 1320063 C
Classification (IPC)B21B37/00 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedNov 6, 1987Patent grantedJuly 13, 1993Term endedJuly 13, 2010

Sources & verification

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