A corner irrigation system
CA 2297532 A1 · Owner: Unruh, Rudy R. · Inventors: Unruh, Rudy R.; Gerdes, Jerry D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An irrigation system is disclosed which includes a center pivot support having an, elongated main water boom pivotally connected thereto which extends outwardly therefrom. An elongated extension boom is pivotally connected at its inner end to the outer, end of the main boom and is supported by a steerable drive tower. A corner arm sensor is, provided for sensing the angle of the extension boom with respect to the main boom. A, plurality of first sprinklers are positioned on the extension boom along the length thereof, the nozzle size of which increases from the inner end of the extension boom to the outer, end thereof. A plurality of second sprinklers are also positioned on the …
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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 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 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.