Fireproof composite yarn comprising two types of fibers
CA 2493943 A1 · Owner: Lanier, Thierry · Inventors: Paire, Christian; Lanier, Thierry
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 fireproof composite yarn comprising between 80 and 90 percent by weight of flameproof fibers said fibers containing a polymeric , material based on polyvinyl alcohol between 10 and 30 percent by weight of at least one type of thermostable fibers made of a non-flammable material. The invention also relates to a fabric comprising at least one woven or knitted textile layer that is made of such a yarn.
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 July 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2025.
- 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.