Snap-fit button
CA 1186136 A · Owner: Yoshida Kogyo K.K. · Inventors: Kanzaka, Yoshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A button assembly is disclosed for attachment on a garment fabric, which assembly comprises a female or button part having an apertured shank and a male or fastener part having a pointed shank for insertion into the aperture of the female shank. The button assembly is provided with means for expelling the air entrapped within the aperture of the female shank which would otherwise cause rupture of the button part. The advance in the art is in that the invention provides the desired strong connection between the two elements by utilizing virtually the entire volume of the axial cavity for the material of the stem. At the same time the invention, facilitates the assembling of the button by …
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 April 30, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2002.
- 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.