Device for setting a plastic film or the like, in particular for agricultural purposes
CA 2381044 A1 · Owner: Le Societe Cm · Inventors: Mainguy, Yannick; Cadiou, Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a device for setting a film comprising a running frame (2) equipped with two rows of tools (5 6, 7) consisting in succession from the front towards the rear of the frame (2) a member (5) for opening a trench in the ground a member (6) for positioning a lateral end of the film in said trench and a member (7) for filling up the trench. Said device is characterised in that the trench-opening members consist respectively of a member equipped with at least a cutting edge arranged to cut the ground substantially vertically when the frame moves forward so as to define in the ground, a slot forming a trench said trench-opening members (5) being substantially arranged aligned …
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
- Filed August 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 2022.
- 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.