Process for the formulation of mixtures and installation for carrying it out
CA 2064218 A1 · Owner: Robert, Bernard · Inventors: Darmedru, Jacques; Dognon, Jacques; Prantoni, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for making mixtures of several constituents. The method is characterized in that it involves: drawing off a portion of at least one additive from its storage device (6); continuously weighing the storage device (6) during this process; determining the amount of additive drawn off from said device by monitoring the changes in the weight thereof throughout said process; halting said process once the required amount has been drawn off; and transferring said additive to the mixing enclosure (2). The method can be used to make mixtures to produce lubricants paints, inks or , pharmaceutical or para-pharmaceutical compounds.
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 May 16, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2013.
- 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.