Aromatic polyamide fiber-polyester fiber-blended spun yarn fabric
CA 2083962 C · Owner: Nakayama, Genji · Inventors: Nakayama, Genji; Takimoto, Noboru; Hosoyama, Koichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fiber fabric useful for flame-resistant garment is composed of yarns comprising a blend of 65 to 95% by weight of an aromatic polyamide fiber-containing fiber component with 5 to 40% by weight of a polyester fiber component; the aromatic polyamide fiber-containing fiber component comprising 50 to 100% by weight of aromatic polyamide fibers and 0 to 50% by weight of cellulose fibers and the fiber fabric having a limiting oxygen index of 26 or more.
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 June 11, 1991 and granted June 9, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 11, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2013.
- 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.