Plant alert
CA 2040119 A1 · Owner: Pizzicarola, Mario · Inventors: Pizzicarola, Mario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Page 1, A device for determining the amount of water in a hanging plant at any given time and for determining when such a hanging plant next requires watering. This indicator measures the evaporation of water from the pot of a hanging plant, and indicates the current water content of the pot and the point at which the plant next requires water. This indicator or gauge is housed in a tube that is hung from a ceiling or beam, either indoors or outside to which is, attached the hanging plant in a pot of appropriate size. There are three (3) moveable rings of different colours on this tube. Each ring has a particular function: Green to indicate when the pot is fully watered Red to indicate …
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 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2013.
- 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.