Three-dimensional woven fabric and process for its production
CA 2493796 A1 · Owner: Iwashita, Kenji · Inventors: Iwashita, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A three-dimensional fabric which comprises a surface layer having a fabric weave, a back face layer having a fabric weave and a jointing layer bending in a wave form in the warp or weft direction and having a fabric weave wherein a , composite yarn composed of two or more components comprising a polyester multifilament yarn having a single fiber fineness of 0.05 to 1.5 dtex and having 30 to 150 filaments is used as at least one of a warp and a weft in the above surface layer and back face layer.
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 December 1, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 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.