Forestation and environment protecting method and system
CA 2363339 A1 · Owner: Chiu, Chui-Wen · Inventors: Chiu, Chui-Wen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Plastic bags are continuously formed and filled with sand soil and gravel to , fabricate, flexible soft bricks of various shapes and configurations which may be laid on the ground to, stabilize sand for growing vegetation or to prevent soil depletion due to water erosion or to grow, vegetation in them. Protective housings made of plastic membrane material may be erected in dry, or desert regions for growing trees and vegetation. The lower portion of the housing may be, located below ground into a trench. Self operating knives are located in the housing to sever the, plastic membrane material when the tree grown in the housing has reached a predetermined, maturity. Tree planting …
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 November 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 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.