Apparatus for feeding slide fastener chain with attached fabric strips
CA 2100809 C · Owner: Ykk Corporation · Inventors: Ishikawa, Kiichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for feeding a continuous slide fastener chain having strips of fabric secured on outer edges of tapes at predetermined intervals comprise a pair of guide members defining therebetween a feed path for feeding a continuous chain with attached strips along, and a drive endless belt unit mounted on either one of the guide members for pressing contact with the continuous chain with attached strips over a suitable length thereof and connected with a drive source to positively feed the continuous chain with attached strips along the feed path; so that, if heavy fabric strips are attached thereto, the continuous chain with attached strips can be fed smoothly and stably. (FIG. 1)
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 July 19, 1993 and granted February 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2015.
- 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.