Method and device for obtaining vegetal fibre material and the use thereof
CA 2339842 A1 · Owner: Eisfeld, Jens-Gerrit · Inventors: Eisfeld, Jens-Gerrit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A low-fibre method for obtaining a fibre material (21) that is suitable for use as a raw material for insulation purposes for the production of fibre , mattresses or as a filling or padding material from the fruits of poplars, willows, composites or similar plants. The closed fruits of said plants are dried and/or opened using an air flow and agitated in a treatment chamber (17), whereby the fibre material (21) contained in the fruit capsules (19) is substantially separated from the other constituent parts of said fruits.
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 August 9, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2021.
- 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.