Vacuum infusion by means of a semi-permeable membrane
CA 2588022 C · Owner: Hansen, Tim Moller · Inventors: Hansen, Tim Moller
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of producing an oblong shell member made of fibre composite material by means of vacuum infusion, where the fibre material is impregnated with liquid polymer. A mould is applied with a mould cavity in which a fibre insertion , (3) with a first lateral face (1) and a second lateral face (2) is placed and , where said fibre insertion includes a plurality of fibre layers and a distribution layer (4), said distribution layer allowing a higher rate of flow for the liquid polymer than the fibre layers. A semi-permeable membrane (5) is placed opposite the first lateral face (1) of the fibre insertion said semi-, permeable membrane being substantially permeable to gasses and …
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 November 30, 2005 and granted February 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2025.
- 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.