Method for processing domestic, industrial and other similar waste with the production of a cellulose material
CA 2027385 A1 · Owner: Organ-Faser Technology Company N.V. · Inventors: Frei, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for processing domestic, industrial and other like waste with the production of a cellulose material in which the waste material is subjected to pre-comminution magnetic, separation, air-classification and fractionating. It is primarily characterised in that the light fraction consisting of paper, textiles and plastics material separated in the air-classification is passed to a washing station and the washed air-floatable materials passed into a pulper, the ballast substances are removed following the treatment in the pulper by means of screening and the cellulose particles distributed in the water that pass the screen are introduced, directly or after …
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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 October 11, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 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.