Soil cultivating implements
CA 1091077 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
A soil cultivating implement is disclosed of the kind which has a plurality of soil working members that are rotatable about upwardly extending axes. In known implements of this kind the shafts that embody the axes of, rotation of the soil working members sometimes require temporary removal from ant subsequent replacement in, frame portions of those implements. This is in most cases, a somewhat lengthy operation and accordingly, the present, invention provides a way of mounting shafts for this purpose which is such that the operation of removing and subsequently replacing any shaft can be carried out both quickly and easily.
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 December 9, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 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.