Windrower specialty crop platform having right-and left-hand cantilevered augers located beneath a full-length center-feed auger
CA 2260409 C · Owner: Deere & Company · Inventors: Krambeck, Frederick Carl; Keller, Melvin William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A windrower platform is constructed with a full-length upper center-feed, auger which counter rotates relative to and cooperates with lower right- and , left-hand, cantilever- mounted augers to convey harvested crop to form a windrow on the ground at a, central discharge zone of the platform. The various driven elements of the platform are, driven from a main power distribution gear box having an input shaft coupled for being driven, by a reversible hydraulic fluid motor. The upper auger is used for transmitting power to the, opposite side of the platform from the main power distribution gear box and a transmission, assembly is provided at this opposite side for driving the lower …
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 February 12, 1999 and granted September 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2021.
- 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.