Method and device for recovery of scrap goods
CA 2074258 C · Owner: Inter-Recycling Ag · Inventors: Alavi, Kamal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Electronic scrap goods, for example, electronic components, cables etc. are successively and alternately mechanically crushed, magnetically separated and mechanicallyphysically separated, for example, by means of electrostatic separators. The dust produced during crushing is pneumatically collected and filtered out. The non-metal fraction as well as the magnetic and non-magnetic fraction are produced separately as granules and dust. The metal fractions are suitable for subsequent pyrolysis-free wet chemical, and/or electrolytic separation. The non-metallic fraction is disposable. The method is distinguished by low energy consumption and high environmental compatibility.
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 21, 1990 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 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.