Negative-angle forming die
CA 2345973 A1 · Owner: Matsuoka, Mitsuo · Inventors: Matsuoka, Mitsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A slight pivoting movement makes a rotary cam out of a predetermined formin g position, making an unwanted step in a curved surface of the work or making un, able to form into an accurate curve. Sometimes providing a product of , accuracy, in the order of 1/100 mm was difficult or it was impossible to provide a , forme d sheet metal product of a high quality. The present invention aims to maintain, the rotary cam at a predetermined forming position thereby providing a formed s, heet metal product of a high quality. The present provides a negative-angle forming die comprising a lower die ha lf having a supporting portion for placing a sheet metal work and an upper , die, half to be …
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 May 4, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 4, 2023.
- 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.