Button applicator with safety apparatus
CA 2012015 C · Owner: Ito, Kazuyoshi · Inventors: Ito, Kazuyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Button Applicator with Safety Apparatus Abstract of the Disclosure, A button applicator with a one-rotation clutch linked to a foot pedal and is released by a disconnecting and connecting mechanism. A safety member is provided between a punch and a die and urged upward. A swing lever is linked to the safety member at its one end and linked to an operation rod connected to the foot pedal at its substantial center and swings about another end of the swing lever. A means for shutting off the clutch is provided between the operation rod and the swing lever. A means for allowing the notation of the clutch is provided between the operation rod and the connecting and disconnecting mechanism. …
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 March 13, 1990 and granted October 12, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2012.
- 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.