Seed and fertilizer drill and method
CA 2759226 C · Owner: Audette, Patrick · Inventors: Audette, Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drill including a support frame and planter row units separated in first second and third groups. A central member supports the first group and is attached to the support frame in a transverse manner so that the units of the first group are in contact with the ground in an operational position. First and second outer member respectively support the second and third groups of the planter row units and are attached respectively to a first and second end of the central member through a lift system moving each outer member between first second and third positions. The outer members are in the first position, collinear with the central member with the second and third groups of units in …
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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
- Filed January 12, 2005 and granted October 30, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.