Fermentation plant
CA 2116379 C · Owner: Rindelaub, Frank Alex Erich · Inventors: Schmutz, Urs; Rindelaub, Frank Alex Erich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The fermentation plant for the biological degradation of organic material and for the collection of the bio gas formed during degradation has a closed container with a filling opening for fresh material and inoculated material and discharge openings for the degradation products as well as a stirring device for mixing the fermentation material. The stirring device has circularly moving stirring blades which are preferably individually driven in the container. Scrapers are provided on the container floor with which heavy precipitates deposited on the container floor are transported in batches to a discharge device. A flow system for a heating medium is also provided on the side walls which is …
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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 February 24, 1994 and granted November 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2016.
- 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.