Knit slide fastener stringer
CA 2207777 C · Owner: Ikeguchi, Yoshito · Inventors: Kato, Hidenobu; Ikeguchi, Yoshito; Matsuda, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A knit slide fastener stringer comprising: a fastener tape knit in a warp-knit ground structure and having along one longitudinal edge an element-attaching marginal portion and, a continuous fastener element row knitted in and along the element-attaching marginal portion of the fastener tape and secured by anchoring chain stitch yarns of at least two wales simultaneously with the knitting of the fastener tape. In the slide fastener stringer, an additional anchoring chain stitch yarn independent from the anchoring chain stitch yarns is disposed between the anchoring chain stitch yarns near the coupling head portions and successive coupling head portions extending warpwise over the fastener …
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 13, 1997 and granted April 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2019.
- 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.