Snap button and method of attaching the same
CA 2242810 A1 · Owner: Kawakami, Katsunori · Inventors: Watanabe, Hirokazu; Kawakami, Katsunori
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A snap button for attachment to a cloth is composed of male and female buttons engageable with each other. Each of the male and female buttons includes a face plate centrally from which a smashable shank projects, a snap body and a resilient, plate. The snap body has a respective one of concave socket and plug portions in which an axial shank-insertion hole and, a peripheral flange extending from a base portion of the plug and socket portions off an inner open end thereof. The resilient plate is adapted to be pierced by the shank so as to clamp the cloth between the face plate and the resilient plate. As a result the cloth is held not only between the resilient plate and the shank but also …
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 10, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 2020.
- 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.