Apparatus for producing strip of stainless steel
CA 2192834 C · Owner: Suehiro, Toshiyuki · Inventors: Takeshita, Tetsurou; Arai, Takashi; Oka, Hideki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for the production of a stainless steel strip comprising the following devices provided in sequence: a twin-drum continuous casting machine; an atmosphere control cover having in its interior a bridle roll or a pinch roll; a hot-rolling machine; a heat-treating furnace comprising direct-fire burners connected to header pipes juxtaposed to one another in the widthwise direction of the furnace over the longitudinal direction of the furnace; a cooler; and a coiler.
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
- Filed April 12, 1996 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 12, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 12, 2018.
- 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.