Sod harvester
CA 2449683 A1 · Owner: Brouwer Turf Inc. · Inventors: Devries, Roelof H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved method of mounting the cutting head (24) of a sod harvester (20) with respect to the conveyor (26) employs a single ball joint (42) between the cutting head (24) and the conveyor (26) and a pair of side links (46, 48) , spaced outwardly of the conveyor (26) and arranged to constrain the cutting head (24) against lateral displacement with respect to the conveyor (26). Preferably, the links (46, 48) are adjustable in length to permit vertical and lateral adjustment of the cutting head (24) with respect to the conveyor (26) e.g. "tracking" of the cutting head (24).
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 May 30, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 2024.
- 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.