An elongate rotary machining tool comprising a cermet having a co-ni-fe-binder
CA 2302355 A1 · Owner: Heinrich, Hans-Wilm · Inventors: Heinrich, Hans-Wilm; Schleinkofer, Uwe; Schmidt, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An elongate rotary tool including at least one cutting edge (4 6) that is , useful in the machining of workpiece materials is disclosed. The elongate rotary tool comprises a cermet comprising at least one hard component and about 0.2 wt.% to 19 wt.% Co-Ni-Fe-binder. The Co-Ni-Fe-binder is unique in that even when subjected to plastic deformation the binder substantially , maintains its face centered cubic (fcc) crystal structure and avoids stress and/or strain induced transformations.
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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 August 20, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 20, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 20, 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.