Process for disaggregating waste materials which contain at least partially reusable elements
CA 2267105 C · Owner: Hoberg, Heinz · Inventors: Christiani, Joachim; Bender, Martin; Hoberg, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is disclosed for disaggregating waste materials which contain at least partially reusable elements mainly metals, plastics and, cardboard. The waste materials are stirred in water by mechanical forces large pieces, in particular plastic pieces are coarsely crushed and soluble, elements in particular cardboard, are dissolved. The metallic elements are separated from the suspension as heavy materials the remaining, coarse solids, in particular plastics are mechanically separated from the, suspension and the suspended fine solids are separated from the suspension by dewatering.
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 24, 1997 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2019.
- 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.