Roller mill
CA 2111622 C · Owner: Cressman, Stanley · Inventors: Cressman, Stanley
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rolling mill suitable for rolling seed for example grains for animal feed, and oil seeds has two pivotally-connected frame components carrying the respective, rolls of the mill. A spring-loaded clamp holds the two frame components closed. The, rolls themselves have smooth outer surfaces and are fed by a pressure feed mechanism that pressurizes the seed fed into the nip between the rollers.
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 December 15, 1993 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2015.
- 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.