A environment-friendly comfortable covering block on the inclined plane for protecting a bank, dyke, or a earth wall
CA 2379774 A1 · Owner: Yang, Won-Hoi · Inventors: Yang, Won-Hoi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to covering block for protecting dyke or bank or any earth wall having inclined plane which prevent sweeping, away of the inclined plane parts of the dyke arisen by scouring thereof in water flood or large-scale tidal waves. At the same time the present invention aims at building-up environment-friendly bank or dyke or any earth wall harmonizing with the surrounded scenery as well as securely protecting it.
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 March 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2024.
- 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.