Natural ecosystem reproducing method
CA 2108953 A1 · Owner: Yanohara, Yoshitami · Inventors: Yanohara, Yoshitami
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A natural ecosystem reproducing method comprising a step of preparing as a container, for example a box-like, bed with its top open for receiving living things such as plants, for example, green vegetables, rootcrops and fruit vegetables and aquatics like fishes, shells and crustaceans and growing such plants and aquatics, a step of storing in the bed a culture solution containing nutrients for growth of such plants and aquatics, a step of waving the culture solution by means of a wave maker which moves vertically a rectangular parallelepiped wave-making element disposed above the bed and made of, for example a synthetic resin, and a step of periodically and vertically changing the level of …
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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
- Filed October 21, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 21, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2015.
- 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.