Double-chamber mixing device for viscous pharmaceutical substances
CA 2609438 C · Owner: Uteron Pharma Technologies S.A. · Inventors: Bonnard, Eric
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a double-chamber device for mixing at least two viscous substances comprising: cylindrical and coaxial first (1) and second (2) communicating vessels each hermetically sealed at one end by a mobile piston (12 22) and provided at its second end with a slightly conical bottom end (11 21), the two vessels (1, 2) being arranged preferably vertically, in mirror symmetry relative to a meridian plane perpendicular to their common axis; a central mixing element (5) connecting the two vessels (1 2) at the two slightly conical bottom ends (11 21); a high-pressure hydraulic device for automatically activating the pistons in a coordinated reciprocating movement.
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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 May 23, 2006 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.