Molten metal pump system
CA 2508564 A1 · Owner: Palmer, Mark · Inventors: Palmer, Mark; Gilbert, Ronald E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A molten metal pump system which generally provides a refractory connection joint for connecting a refractory pump post to a pump base the pump post , including a refractory post with a first end the first end including an , internally threaded joint screw aperture; a refractory base with a post aperture configured to receive the first end of the refractory post and with , a screw aperture contiguous with the post aperture; and a joint screw with a first end and a second end, the joint screw including a threaded external surface and a retention shoulder, the joint screw configured to insert through the screw aperture in the refractory base with the threaded external surface engaging …
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 October 28, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2025.
- 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.