Apparatus and methods for handling and controlling the nurturing of plants
CA 2433229 A1 · Owner: Houweling, Abraham Paulus · Inventors: Houweling, Abraham Paulus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for handling and controlling the nurturing of plants comprises a greenhouse for providing a first environmental zone for nurturing plants a , plant warehouse, for providing a second environmental zone for nurturing plants transport , rails extending, from within the first environmental zone to within the second environmental zone, and a, plurality of ebb and flood trays. The first environmental zone is located in the greenhouse in, a region positioned to receive substantial amounts of sunlight. The second environmental, zone is located in the warehouse in a region substantially sheltered from sunlight. The ebb and flood trays each include a valve for controlling fluid flow …
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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 June 23, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 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.