Vertical diffusion bonding apparatus
CA 2280367 A1 · Owner: Daido Tokushuko Kabushiki Kaisha · Inventors: Tsuchiya, Masaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vertical diffusion bonding apparatus is provided with a lower block, a pressurizing jig which is fitted to a metal pipe supplied from an upper position, and a pressurizing mechanisms stood erect on the lower block. The lower metal pipe is held by the lower block and the pressurizing jig bonded to the metal pipe is attracted toward the lower block by using the pressurizing mechanisms . Thus, the metal pipe which is supplied from an upper position is pressed against the lower metal pipe.
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 August 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 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.