Alloy based on copper, manganese and aluminium, and objects made of said alloy
CA 2033259 A1 · Owner: Wenschot, Petrus · Inventors: Wenschot, Petrus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An alloy based on copper,manganese and aluminium said alloy further, containing iron and nickel besides unavoidable impurities, with less than 7% by weight zinc and possible other metals which alloy is formed of 10 -, 55% by weight manganese 4 - 10% by weight aluminium, 0.5 - 5% by weight iron, 2 - 8% by weight nickel and 0.5 - 2.5% by weight titanium the, balance being copper.
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 December 27, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 27, 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.