A method of manufacturing a reinforcing thread
CA 2354698 A1 · Owner: Lefebvre, Jean · Inventors: Lefebvre, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The object of the invention is a method of manufacturing by, friction spinning, a reinforcing thread (1) for fabric covering or a technical textile intended to be incorporated in a textile base, in which:, - the spinning machine (7) is supplied with a core thread (2);, - the spinning machine (7) is supplied simultaneously with a sliver (9) of fibres (3, 4), the said fibres (3 4), being individualised and then associated with the said core thread (2);, in which the sliver (9) of fibres is formed from a mixture of hot-melt fibres (3) and high melting point fibres (4).
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 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 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.