External tank filter, in particular for an aquarium
CA 2407848 A1 · Owner: Chauquet, Jacques Jean · Inventors: Chauquet, Jacques Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a filter comprising a sealed vessel containing various filtering components and consisting of a vessel (2) closed with a lid (3) equipped with a removable connector (7) for a pipe (9) supplying water from the tank and a pipe (12) returning water to the tank each of the connecting elements of the two pipes on the connector being provided with a valve allowing or preventing water to flow through and the connector is equipped with means to be fixed on the lid. The connector (7) is equipped with a single means (19) for simultaneously actuating the valves mounted on the two pipes and the means fixing the connector (7) on the lid (3).
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 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2023.
- 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.