Steel alloy, steel strip made of the alloy, and use of the steel strip
CA 2178617 A1 · Owner: Krzysztalowicz, Daniel · Inventors: Krzysztalowicz, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steel alloy contains in weight-% 0.5-1.0 C. 1-2 Si max 0.2 Mn preferably max 0.001 S, 0.1-0.5 Cr, balance essentially only iron. In the form of a cold rolled hardened and tempered strip it can be used as a backing material for band saw blades frame saw blades, and circular saw blades where the teeth are tipped with a different material than the backing material. This steel strip has a structure consisting of tempered martensite, and possibly remaining carbides obtainable by hardening from a temperature between 780 and 1000°C and tempering at a temperature between 200 and 550 °C.
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 November 18, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2016.
- 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.