Corrosion resistant, magnetic alloy
CA 2020875 C · Owner: Debold, Terry A. · Inventors: Masteller, Millard S.; Kosa, Theodore; Debold, Terry A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ferritic alloy, having an improved combination of magnetic properties and corrosion resistance contains, in weight percent, about, %, Carbon 0.03 max. Manganese 0.5 max. Silicon 0.5 max. Phosphorus 0.03 max. Sulfur 0-0.5 Chromium 10-13.0, Molybdenum 0-1.5, Nitrogen 0.05 max. Titanium 0.01 max. Aluminum 0.01 max. and the balance is essentially iron. The alloy and, articles made therefrom, provide higher saturation induction than known corrosion resistant magnetic, alloys.
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 11, 1990 and granted September 9, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 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.