Installation for carrying out several successive chemical reactions in the same container
CA 2077930 A1 · Owner: Digard, Pierre · Inventors: Ringot, Gilbert; Ringot, Gilbert; Digard, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to successively carry out several chemical reactions in the same container (10) e.g. dosing uranium in the presence of plutonium and fission products used in the Davies and Gray method said container is placed in a working station above which issue tubes (16, 20) for supplying the products necessary for the reactions. When a product has to be introduced, a computer controls the descent of the corresponding tube. When the product may react inopportunely if it drops into the container (10) outside the time intended for this purpose the lower, end of the product supply tube (16) is automatically laterally displaced with respect to the container when said tube is in the top position, …
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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 September 10, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2014.
- 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.