Membrane filter with deaeration and method for the manufacture thereof
CA 2465657 C · Owner: Fleuren, Marc Johannes · Inventors: Kouters, Lucas Johannes Cornelis; Blume, Ingo; Fleuren, Marc Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for manufacturing a membrane filter comprising the steps of: - fixing a bundle of hydrophilic filter elements by at least a first end in a housing part to be called bottom element such that the first end of the hydrophilic filter elements is open towards a first side of the housing part and the hydrophilic filter elements extend on the the opposite side of the housing part; and - subsequently providing for at least one watertight and air-permeable element in particular a hydrophobic filter element.
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 April 30, 2004 and granted May 28, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2026.
- 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.