Non-precious alloy and use of same
CA 2330716 A1 · Owner: Strietzel, Roland Dieter · Inventors: Strietzel, Roland Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
What is proposed is a non-precious alloy with a cobalt-chrome or nickel-chrome base, containing 30 - 70% nickel and/or cobalt 20 - 35% chrome and 3 - 25%, in , particular 12 - 15% manganese and/or iron. With such an alloy as casting material it is , possible, to make dental products such as crowns bridges, inlays and the like that can be, ceramically veneered without problems arising as a result of different coefficients of, thermal expansion.
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 January 12, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2023.
- 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.