Woven slide fastener stringer
CA 1307185 C · Owner: Ohfusa, Masaatsu · Inventors: Ohfusa, Masaatsu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a woven slide fastener stringer in which a gap-filling warp thread extends under successive loops of a coiled plastic filament and alternately over and under picks of a foundation weft thread so as to pull portions of the foundation weft thread between the outermost upper binding warp thread and the next upper binding warp thread toward the lower side of the tape substantially halfway between the upper and lower legs of the respective loops at least one pair of space-retaining warp threads is disposed between the outermost upper binding warp thread and the next upper binding warp thread. The spaceretaining warp threads extend alternately over and under the upper and lower legs of the …
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 September 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 2009.
- 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.