Quickly attachable button
CA 1050240 A · Owner: Liljendahl, Sven A. J. · Inventors: Liljendahl, Sven A. J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A button is quickly attachable to sheet material such as textile cloth and comprises a button body including a central portion defining a button base and having an uninterrupted outer wall and an inner wall with axially aligned openings between said outer and inner walls. An attaching means comprises a supporting plate including at least two pins projecting from one face of the supporting plate and arranged around a center axis thereof, the pins having pointed heads adapted to be punched through the sheet material from the side of said material opposite to the side to which the button is to be attached. The pins are adapted to be then inserted into the axial …
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 13, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 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.