Detection of diamonds
CA 2559516 C · Owner: University Of The Witwatersrand Johannesburg · Inventors: Sellschop, Jacques Pierre Friedrich (Deceased); Connell, Simon Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method and apparatus for detecting the presence of diamond in a particle and for sorting particles according to whether or not they include diamonds. In the method, the particle is irradiated (36) with photons of selected energy at which the GDR (giant dipole resonance) is excited for the nuclear reaction of the photons with carbon and the particle , is identified as potentially a diamond or diamond-containing particle according to its interaction within the incident photons. In the preferred embodiments, the particle is identified (42) as potentially a diamond or diamond-containing particle according to whether the isotope 11C with a , characteristic …
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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 March 14, 2005 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 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.