A method for coastal protection and a pressure equalization module for use in this connection
CA 2311953 A1 · Owner: Jakobsen, Poul · Inventors: Jakobsen, Poul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method for coastal protection, where the coastal area has an underlying freshwater basin and below this a salt water tongue which extends obliquely down into the coastal profile, the pressure is equalized in the groundwater basin at least along an area at the store line completely or partly to the atmosphere through pressure equalization modules preferably in the form of , pipes with a filter at the bottom which extend down into the groundwater basin. This causes sedimentation of material and thereby an increase in the width of the shore. The resulting sand drift may be utilized for additional building-up of the coastal profile by establishing fascines further up on the beach. …
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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 November 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2020.
- 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
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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.