Boom guidance
CA 2241350 A1 · Owner: Kornelson, Albert · Inventors: Kornelson, Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drawbar for agricultural ground working implements includes a main frame having a front and rear end. A hitch is mounted on the front end of the frame, for connecting to a towing vehicle. On the rear end of the frame there is mounted a, plurality of first pivots oriented for rotation about a generally horizontal axis. A beam, connected to the first pivots is rotatable between a field position and a transport, position. The beam mounts a pair of second pivots having axes wherein the orientation of the axes rotate with the beam. A pair of main booms are mounted on, the respective second pivots for rotation between the field position and the transport, position. Mounted on the 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 June 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2020.
- 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.