Universal cereal puffing apparatus
CA 2000828 C · Owner: Powers, Phillip G. · Inventors: Schukman, Jacob E.; Powers, Phillip G.; Mccullough, Nancy J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus is provided that is suitable for puffing a variety of different cereal material such as any cereal grain or cereal doughs or extrusions. A generally frusto-conical pressurizing chamber is provided with a nozzle component at its discharge end portion, which nozzle component is interchangeable with nozzle components having differing shapes and sizes depending upon the particular cereal material to be puffed or expanded. Steam injectors are tangentially oriented with respect to the pressurizing chamber and they cooperate, to provide a generally vortex-like discharge path for the cereal material out of the pressurizing chamber.
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 October 17, 1989 and granted March 9, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2011.
- 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.