Punch press
CA 1215638 A · Owner: Amada Company, Limited · Inventors: Miyama, Hidetoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A punch press has a C-shaped frame in which upper and lower punching tools are held in vertical alignment with each other to perform a variety of accurate punching operations in spite of any deflections or vibrations of the frame. The workpiece will also be subject to fewer vibrations. A workpiece feeding and positioning means is also mounted on the C-shaped tool holding means for holding the upper and lower punching tools.
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 December 23, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 2003.
- 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.