Mixer
CA 2182909 C · Owner: Hartwig, Gert · Inventors: Hartwig, Gert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mixer is comprised of a substantially circular container tub and includes an auger flighting member extending upwardly within the mixer for engagement with bales of material to cut and shred the bales. The auger flighting member includes a plurality of knife blades mounted on the outer radial edges of the auger flighting member. The upper end portion of the auger flighting member includes a mounted knife blade with the, upper end portion of the member being bent out of the plane of the auger flighting at an angle of between 15 and 25 degrees. The auger flighting member includes a lower flighting portion having an extension member comprised of a leading edge member cooperating with the …
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 August 8, 1996 and granted March 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 8, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2018.
- 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.