Soil cultivating implements
CA 1048844 A · Owner: C. Van Der Lely N.V. · Inventors: Van Der Lely, Ary
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a soil cultivating implement of the kind which comprise a plurality of soil working or cultivating members that are rotatable about upwardly extending axes. The said members are arranged in at least one row that extends transverse to the intended direction of operative travel of the implement and are carried by a supporting frame of the implement which is disposed at a higher horizontal level that that of said members. The supporting frame is provided with at least three ground wheels whose planes of rotation are angularly displaceable about corresponding upwardly extending axes and means is provided by which the plane of rotation of each of at least said three …
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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 February 20, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 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.