Device for growth of plants
CA 1295131 C · Owner: Shishkin, Viktor V. · Inventors: Shishkin, Viktor V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstracts of the Disclosure The device comprises a hermetically sealed chamber whose interior space accommodates a perforated band held to a driven drum. Part of the chamber is made as a flexible tubing one end of which is connected to the free end of the perforated band, and the other end is turned inside down and held peripherally in the chamber to form a hermetically sealed space along therewith. The interior space of the chamber is connected to the working agent and nutrient medium feeding systems.
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
- Granted February 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 4, 2009.
- 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.