Apparatus and method for hydroforming workpieces
CA 2331449 A1 · Owner: Hedin, Kenneth · Inventors: Bernelf, Claes; Hedin, Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for hydroforming workpieces includes a first (11) and a second tool part (13) and a press device (1, 6 7) which closes and holds together , the tool parts during a forming cycle. The first tool part (11) is mounted in the press device (1, 6, 7). The second tool part (13) is disposed for insertion into and removal from the press device (1 6, 7), for example with , the aid of a conveyor (8). Further the apparatus includes means (12) for the supply of pressurised fluid to the first tool part (11).
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 10, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2021.
- 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.