Soil cultivating implements
CA 1056641 A · Owner: C. Van Der Lely 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
Soil cultivating implements are disclosed of the kind which have a frame that is at least partly supported by ground wheels during operation of the implement and which also have at least one group of soil working or cultivating members that are rotatable about upwardly extending axes the, group being carried by the frame in a row that extends in a direction which is transverse to the intended direction of operative travel of the implement. At least two groups of the soil working or cultivating members are carried by the frame in side-by-side relationship and at least one group is upwardly tiltable relative to at least one other group to bring the implement from a working position to a …
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 June 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
- 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.