Method and structure for environmental control of plant growth
CA 1315554 C · Owner: Sprung, Philip D. · Inventors: Sprung, Philip D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and structure for environmental control of plant growth in greenhouse conditions. The structure comprises a translucent stressed fabric shell on a base the shell and, base enclosing a predetermined space within which to grow horticultural plants, the shell and base sealing the environment within the space against external environmental air conditions. Temperature, humidity carbon dioxide are monitored and controlled within the space by a microprocessor programmed to provide optimum temperature, humidity and carbon dioxide conditions within the space. The structure and method are ideally suited to nutrient film techniques wherein nutrient, being fed to the plant roots is monitored …
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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 April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 2010.
- 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.