Process for producing hot rolled strip
CA 2233117 A1 · Owner: Kluge, Ehrhard · Inventors: Kluge, Ehrhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a process for producing a hardened stainless steel strip a steel containing 10 to 20% chromium up to 3% nickel, up to 1.5% molybdenum up to 1% manganese, up to 1% silicon, up to 0.6% titanium up to 0.1% carbon and up to 0.1%, nitrogen balance iron and impurities arising from melting is, hot rolled and is then quenched directly from the rolling temperature. To adjust the strength the hot rolled strip may be cold rolled to its final thickness.
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 March 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2020.
- 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.