Store
CA 2000687 C · Owner: Eggert, Uwe · Inventors: Kvamsdal, Ole M.; Eggert, Uwe; Johansson, Alf
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 a store (1) for the storage of environmentally harmful substances (2) such as stable toxic compounds, and long-lived nuclear materials etc. which store comprises a number of cavities (6) in rock intended for holding the substances (2) in question with, a roof (8) above said cavities, and with the cavities (6) in question being surrounded by a hydraulic barrier (7). Amongst other things the invention permits a passive dry store to be achieved. Holding cavities for storage are formed by drilled vertical holes (6) which extend down to a level (10) situated above a subjacent drainage and ventilation zone (11). The hydraulic barrier (7) which is displaced …
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 October 13, 1989 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2011.
- 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.