Device for drying and thermally treating granulates with an inert gas stream
CA 2394013 A1 · Owner: Ludwig, Alfons · Inventors: Ludwig, Alfons; Pille, Ragnhild; Pipper, Gunter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device (1) for drying and thermally treating granulates with an inert gas stream. Said device has a cuboidal base body (2) comprising an inlet (3) for the granulate in the upper part and an outlet (4) in the lower part. Said device has an inlet (5) on a side surface and an outlet (6) on the opposite side surfaces of the cuboidal base body (2) for the inert gas stream. Said device also comprises a distribution and retaining device (7, 8) in the region of the inlet (5) and outlet (6) of the inert gas stream which substantially extend over the total vertical cross-section of the cuboidal base body (2).
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 November 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2022.
- 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.