Device for treating the soil in the vicinity of buried structures
CA 2239840 A1 · Owner: Pizzorni, Domenico · Inventors: Pizzorni, Domenico; Prandi, Alberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for treating the ground in the vicinity of buried structures, comprising a plurality of probes which are driven into the subsoil and are connected to a control unit provided with an air generating device for generating within the ground, a flow of dry air, the probes being arranged so as to make the generated air flow lap all the surfaces of the buried structures.
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 June 8, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 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
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.