Screen basket for screening suspensions
CA 2459148 A1 · Owner: Backman, Sami · Inventors: Backman, Sami; Bergquist, Johan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A screen basket for screening suspensions containing wearing particles, comprises a circumferential wall of a base material provided with screen passages, and a wear resistant outer layer of a material typically chromium, which is harder than the base material and covers the circumferential wall. At least one wear-indicating layer is applied on the circumferential wall between the latter and the outer layer and adapted to indicate when at least a portion of the outer layer has been worn down to the wear-indicating layer.
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 September 26, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2024.
- 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.