Removal of toxic contaminants from porous material
CA 2299877 A1 · Owner: Kinectrics Inc. · Inventors: Sim, Blair F.; Gonzalez, Luciano A.; Mlynarczyk, Alexandre Z.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for removing a toxic contaminant from porous material by, placing the material and a fluid solvent for the toxic in a drum and rotating the drum around, its horizontal axis. Also provided is apparatus for placing the drum in a sealable container and, sealing the container during the decontamination cycle.
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 February 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 1, 2022.
- 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.