Apparatus and process for conditioning particulate material
CA 2073671 A1 · Owner: Blaw-Knox Food And Chemical Equipment Company · Inventors: Wireman, Jack; Wireman, Daniel R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A controlled spinning bed of particulate material (14) such as coffee beans or the like is formed and maintained in a stationary chamber (10), the particulate material is mixed and uniformly conditioned. For example, coffee beans are uniformly roasted within a relatively short time and cooled in a similar but separate chamber with or without an intermediate quench.
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 January 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2013.
- 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.