Process for assembling intermetallic parts by sintering
CA 2186989 C · Owner: Societe Nationale D'Etude Et De Construction De Moteurs D'Aviation "Snecma" · Inventors: Lasalmonie, Alain; Bigay, Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An assembly process for two elements including at least one intermetallic material includes the following steps: - mixture of elementary powders of an intermetallic compound of the same type as the said material to be assembled - compression and shaping of an intermediary element from the said compound at a temperature lower that than of the reactive sintering of the compound - placing the intermediary element between the surfaces to be assembled - heat treatment according to a first heat cycle adapted to the intermetallic compound so as to obtain reactive sintering of the intermediate element and the consolidation of the assembly - diffusion treatment according to a second heat cycle at a …
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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 October 2, 1996 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2018.
- 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
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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.