Agricultural machine for working the ground
CA 1082527 A · Owner: Patent Concern N.V. · Inventors: Van Der Lely, Cornelis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An agricultural machine for working the ground is disclosed. The machine includes at least one member that is adapted to penetrate the soil and a roller mounted to be driven by engagement with the ground at least one seed drill is provided behind the roller. Spraying means is preferably provided behind the soil penetrating member with respect to the intended, direction of operative travel of the machine.
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 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 1997.
- 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.