Cubic boron nitride compact
CA 2585437 C · Owner: Andersin, Stig Ake · Inventors: Goudemond, Iain Patrick; Fries, Robert; Can, Nedret
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a powdered composition or starting material used in producing a CBN compact which comprises CBN a secondary hard phase and a , binder phase includes two steps of attrition milling. First the attrition , milling of the secondary hard phase and the binder phase. Second adding CBN , particles to the fine particle mixture of the first attrition milling and then attrition milling this mixture.
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 October 28, 2005 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.