Articulated liquid manure spreader
CA 2442811 A1 · Owner: Nuhn, Ian · Inventors: Nuhn, Dennis; Nuhn, Ian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid manure spreader is described which comprises a frame having a plurality of frame portions and having articulation means between each frame portion for permitting relative movement of each frame portion in response to directional changes of the liquid manure spreader. Such an arrangement facilitates turning of the liquid manure spreader. The liquid manure spreader may, also comprise two liquid manure tanks which are in fluid communication with each, other. By means of a pump, liquid manure can be pumped between the tanks to thereby achieve a pre-determined weight distribution between the tanks. Such a fluid arrangement permits better weight distribution leading to better handling …
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 September 23, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2025.
- 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.