Dispenser with a translational piston
CA 2009215 C · Owner: Gueret, Jean-Louis H. · Inventors: Gueret, Jean-Louis H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This dispenser (1) comprises a body (2) in two detachable parts (2a; 2b). The front part (2a) receives a reservoir (4) containing the product (3) to be dispensed between an outlet orifice (5) and a piston (6) which is actuated by a rod (7) moveable in translation step by step by a mechanism (8) lodged in the rear part (2b). The rod (7) comprises rear pawls (29a) and front pawls (29b) normally engaged in the detents (22) and, between the pawls, elastic areas (28) which apply return force on a push button (9) closing the part (2b). Rotating the push button (9) 90 degrees drives the cage rotationally and places it in a position where the pawls are on the flats (21) which disengages the …
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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 2, 1990 and granted March 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2012.
- 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.