Improved sprayer nozzle
CA 2279831 A1 · Owner: Guesdon, Alain · Inventors: Guesdon, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for adjusting a field sprayer (10) which consists in controlling, according to treatment parameters the flow rate of a treating product, sprayed by a set of nozzles (1) characterised in that it consists in dimensioning the discharge orifice (1c) of the nozzles (1c) to obtain a given aperture or closure of said discharge orifice (1c) on the basis of values related to data derived from sensors and set-points.
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 December 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2020.
- 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.