Hydroponic growing apparatus
CA 1138204 A · Owner: Carl, Vincent P. · Inventors: Carl, Vincent P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Invention A hydroponic plant growing apparatus is disclosed wherein a nutrient enriched liquid is flowed within a series of ducts adapted to mount a plurality of planting cups each of which support a sterile media and a plant seedling. The planting cup includes an apertured bottom surface which permits capillary action of the nutrient liquid into the support media as well as allows the root system of each plant to extend into the duct yet isolates the sterile media from direct flow contact with the nutrient liquid. The individual plant cups eliminate contamination of the nutrient liquid, facilitate easy removal and replacement of individual plants on the apparatus, and form …
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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
- Granted December 28, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 1999.
- 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.