Method of and apparatus for manufacturing slide fasteners
CA 1137285 A · Owner: Yoshida Kogyo K.K. · Inventors: Ueda, Minoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pair of continuous slide fastener stringers are longitudinally fed by longitudinally reciprocable grip means and driving roller means that is selectively actuatable. As the slide fastener stringers are advanced one of the stringers, is threaded through a slider being fixed in its path of travel. The slide fastener stringers are cut off transversely across element-free gaps, and then the severed stringer pieces are moved forwardly until their leading end portions are positioned in a molding device, which molds a separable end stop on the leading end portions. The driving roller means is continuosly driven to advance the slide fastener stringers until elementfree gaps arrive at the cutter …
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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 December 14, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 14, 1999.
- 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.