Apparatus and method for the manufacture of hot-rolled steel
CA 2063679 C · Owner: Gadellaa, Robert Franciscus · Inventors: Hollander, Frans; Huisman, Rein Lukas; Kreijger, Pieter Job
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the manufacture of hot-rolled steel strip a continuous casting machine casts a slab and a roll stand for reducing the thickness of the slab to make strip is incorporated in line with the continuous casting machine. Advantages of simplicity and rolling quality are obtained when the roll stand is a two-high roll stand having a single pair of rolls. Where there are reheating means for reheating of the strip after its rolling in the two-high roll-stand the, two-high roll stand is the sole means for reducing the thickness of the slab after full solidification of the slab and prior to entry of the strip into said reheating means.
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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
- Filed March 20, 1992 and granted February 17, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 20, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 2014.
- 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.