High strength magnesium-based alloys
CA 2020484 C · Owner: Ykk Corporation · Inventors: Aikawa, Kazuo; Taketani, Katsuyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides high strength magnesium-based alloys which are composed of a fine crystalline structure the alloys having a, composition represented by the general formula (I) MgaXb; (II) MgaXcmd (111) MgaXcLne; or (IV) MgaXcMdLne (wherein X is one or more elements selected from the group consisting of Cu, Ni, Sn and Zn; M is one or more elements selected from the group consisting of Al Si and Ca; Ln is one or more elements, selected from the group consisting of Y La, Ce, Nd and Sm or a misch metal, of rare earth elements; and a b, c, d and e are atomic percentages falling within the following ranges: 40 ~ a ~ 95,5 ~ b ~ 60,1 ~ c ~ 35,1 ~ d ~ 25 and 3 ~ e ~ 25). Since the …
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 July 5, 1990 and granted July 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2012.
- 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.