Rotary plant growing apparatus
CA 2343254 C · Owner: Storey, Betty · Inventors: Marchildon, Ted
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary plant growing apparatus has an open-ended cylindrical drum which rotates about a horizontal axis on a support stand. A lamp is positioned at the axis of the drum. Holes in the drum hold plant pots with the plants facing the light and the bottom of the pots extending radially outward from the drum. A tray under the drum holds a pool of water and is spaced from the drum such that the lower part of the pots contacts the water as the drum rotates watering the plants. The apparatus is particularly suitable for hydroponic gardening.
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 April 5, 2001 and granted March 26, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2023.
- 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.