Woven slide fastener stringer
CA 2118199 C · Owner: Ykk Corporation · Inventors: Shimono, Muchiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A woven slide fastener stringer which includes a row of coiled coupling elements woven into one longitudinal edge portion of a woven stringer tape with a stuffer cord and upper and lower core threads extending longitudinally through a space defined in the coupling elements. Foundation warp threads and a foundation weft thread laid in double picks cooperate with the upper core thread to weave upper legs in the longitudinal tape edge portion. Binding warp threads underlying lower legs and interlaced at appropriate positions with the foundation weft thread and the, lower core thread are interlaced with a binding weft thread laid in double picks to weave the lower legs into the longitudinal …
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 October 14, 1994 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 14, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2016.
- 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.