Process for carrying out microbiological fermentations in a device comprising a fixed system of an open cell foam as well as a device for carrying out such processes
CA 1294571 C · Owner: N.V. Gechem S.A. · Inventors: Creyf, Hubert; Deryke, Dirk; Verstraete, Willy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a process for carrying out microbiological fermentations, wherein a nutrient liquid and if necessary, gases are passed through a fixed system of open cell polyurethane foam units, which system comprises at least two adjacent foam layers each having a flat main surface and an embossed main surface wherein in, the subsequent layers said embossed surface of a foam layer is positioned against the flat surface of the adjacent foam layer. * * * * *
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
- Granted January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.