Grain cleaner
CA 1104981 A · Owner: Royal Industries, Inc. · Inventors: Mugler, Leon B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cleaner for removing waste particles from grain and similar agricultural products. The cleaner comprises a pair of concentric drums adapted to be rotated in unison and having perforated outer surfaces for separating out waste particles. The inner drum has a plurality of sections of decreasing diameter for deterring the flow of the grain therethrough while separating out the waste particles.
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
- Granted July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 1998.
- 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.