Slide fastener stringer
CA 1088279 A · Owner: Yoshida Kogyo K.K. · Inventors: Matsuda, Yoshio; Yoshida, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slide fastener stringer has a warp-knitted tape including a pair of element-carrying edge portions and a central web portion extending between the edge portions. Each of the tape edge portions is formed with at least three different kinds of stitches, such as chain stitches tricot, stitches or two-needle overlap stitches and single cord, stitches. The web portion is formed with at least two out of the at least three different kinds of stitches. At least one of the edge portions includes a reinforcing warp yarn laid in an interwale groove thereof. A continuous chain of fastener elements of the helically coiled type is sewn to the above-mentioned one of the edge portions with threads …
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
- Granted October 28, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 28, 1997.
- 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.