Windrow grouper arrangement
CA 2259049 C · Owner: Welsch, Thomas · Inventors: Georgel, Pascal; Welsch, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mower for harvesting crop includes windrow forming housing where crop is discharged after being cut. A windrow grouper attachment includes a crop conveyor, attached to the main frame of the mower by a vertically swingable support which is, selectively disposable in a lowered working position where it intercepts crop exiting the, windrow forming housing and transfers it side ways and in a raised non-use position wherein, it permits crop exiting from the mower to be deposited into a windrow directly behind the, mower. The vertically swingable support for the crop conveyor is mounted to a slide that is, in turn mounted for shifting laterally on a transverse beam of the mower main …
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 2, 1999 and granted September 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 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.