Agricultural row marker
CA 1109341 A · Owner: Kinzenbaw, Jon E. · Inventors: Kinzenbaw, Jon E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A marking element is carried by at least one arm which is pivotally mounted to a short boom. The boom in, turn, is pivotally mounted to the outboard end of a tool bar or planter frame. A single hydraulic ram is used to move the marker between a use position in which the arm extends horizontally so the marker engages the ground and, an upright position in which the arm is folded over the tool bar.
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 September 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 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.