Particulate material dryer
CA 2278386 A1 · Owner: Braun, Norman L. · Inventors: Braun, Norman L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A continuous flow particulate material dryer includes a base and a heating chamber extending upwards from a central location of the base for providing, heated air to the dryer. A perforated inner wall structure extends upwardly from the, base and surrounds the heating chamber. A perforated outer wall structure is spaced apart from the inner wall and extends upwardly from the base surrounding, the inner wall. A main drying chamber is defined by the space between the inner, and outer wall structures. A perforated partition separates the main drying chamber, into an inner and an outer chamber. The partition restricts the flow of particulate, material from the inner chamber and the outer …
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 July 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 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.