Soil cultivating machines
CA 1103086 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
A soil cultivating machine is disclosed which has a frame and a plurality of cultivating members journalled in the frame for rotation about upwardly extending axes. The members are arranged in a row transverse of the intended direction of operative travel of the machine and the, distance between the rotary axes of two immediately neighbouring cultivating members is about 15 cms.
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 16, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 1998.
- 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.