Button
CA 1297271 C · Owner: Ykk Corporation · Inventors: Sparrow, Timothy Haynes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A button secured by a rivet to a sheet of compliant material includes an elastic body having a dish-shaped web whose peripheral rim carries the button cap. The web is of uniform construction through its circumference for consistent resiliency whereby the button can be easily tilted from its normal position so as to be readily inserted through the buttonhole of an article.
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 March 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 17, 2009.
- 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.