High temperature aluminum-base alloy
CA 2055648 A1 · Owner: Mirchandani, Prakash Kishinchand · Inventors: Benn, Raymond Christopher; Watwe, Arunkumar Shamrao; Mattson, Walter Ernest
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The alloy of the invention has improved intermediate temperature properties at temperatures up to about 482°C. The alloy contains (by weight percent) a total of about 6-12% X contained as an intermetallic phase in the form of Al3X. X is selected from the group consisting of Nb Ti and Zr. The alloy also contains about 0.1-4% strengthener selected from the group consisting of Co Cr, Mn, Mo, Ni, Si, V, Nb when Nb is not selected as X and Zr when Zr is not selected as X. In addition the alloy contains about 1-4% C and about 0.1-2% O.
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 November 15, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 15, 2013.
- 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.