Cell structure for ground consolidation
CA 2019289 A1 · Owner: Berkhout, Hendrik Constant · Inventors: Villerius, Paul; Berkhout, Hendrik Constant
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
AGW2259, Cell structure for ground consolidation Abstract of the Disclosure: A foldable cell structure is formed from water permeable flexible strips whose width represents the height of the cells and which are connected to adjacent strips at intervals an integral part, of said cell structure being formed by strong stabilizing bands which, in the unfolded state of the cell structure are arranged in straight lines and at least predominantly parallel to one another, the cell structure preferably being formed by the unfolding of a water permeable sheet material provided with off-set, mutually parallel incisions of finite length, with a further preferred embodiment of the cell structure having …
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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 June 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2012.
- 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.