Equipment for increasing the throughput of rotary breakers or rotary screens
CA 2425679 A1 · Owner: Unknown · Inventors: Unknown
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns equipment for increasing the throughput of rotary breakers or rotary screens, especially for adhesive or building-up material such, as tar sand. The increase in throughput will be achieved by arranging one or more loose rings inside a screen drum, such that the rings push the bulk material, through the holes of the screen.
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 April 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 16, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.