Concealed slide fastener
CA 1068078 A · Owner: Yoshida Kogyo K.K. · Inventors: Murai, Ryukichi; Tubata, Noritaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title of the Invention:, CONCEALED SLIDE FASTENER Abstract of the Disclosure:, A concealed slide fastener comprising an engageable pair of stringers individually consisting of a woven fabric tape and an element attached along a side edge portion of the tape, in which employed for the warp yarn woven in at such a portion of the tape which substantially corresponds to the center of a coupling head of the element and along which the tape is double folded is finer than the warp yarn woven in the rest portion of the tape, for an improved ease and accuracy of the tape folding and also an improved fastener concealing performance.
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 December 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 18, 1996.
- 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.