Low noise vacuum release device and controllable suction apparatus using same
CA 2433107 A1 · Owner: Plante, Jean-Sebastien · Inventors: Lemoine, Patrick D.; Plante, Jean-Sebastien; Bolduc, Maxime
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
More specifically, in accordance with the invention as broadly claimed, they is provided a low-noise controllable vacuum release device for regulating/controlling suction in an aspiration line said device comprising a, body defining a main fluid inlet a fluid outlet, and a longitudinal chamber extending there-between, and a blockable bypass inlet provided with an aperture opening to the atmosphere and sloping in the general direction of the fluid outlet from an external surface of the body to said chamber and intersecting said chamber at an acute angle with respect to a longitudinal axis, thereof, connecting the centre of the main fluid inlet to the fluid outlet. In operation, when 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 June 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2025.
- 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.