Stainless steel having excellent thermal neutron absorption ability
CA 2229002 C · Owner: Sumitomo Metal Industries, Ltd. · Inventors: Kajimura, Haruhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The ferritic stainless steel of the present invention contain the following main chemical elements in which a, relationship between B and Gd preferably, satisfies the, following equation (1) on the weight % basis: C: less than 0.01% ~~Mn: not more than 1% Ni: not more than 0.7% ~Cr: 13 - 26%, B: 0.1 - 1.1% ~~Gd: 0.05 - 1.5% A1: 0.002 - 0.1% ~~N: not more than 0.015%. The austenitic stainless steel of the present invention contain the following main chemical elements in which a, relationship between B and Gd preferably, satisfies the, following equation (1) on the weight % basis: C: not more than 0.02% ~Mn: 0.1 - 0.9, Ni: 7 - 22% ~~Cr: 18 - 26% B: 0.05 - 0.75% ~~Gd: 0.11 - 1.5%, Al: 0.005. - …
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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 August 8, 1996 and granted June 19, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 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.
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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.