Composition and method for dehalogenation and degradation of halogenated organic contaminants
CA 2079282 C · Owner: Grace Canada, Inc. · Inventors: Seech, Alan George; Cairns, James Ewart; Marvan, Igor Jiri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of creating an environment which promotes dehalogenation and/or degradation of halogenated organic chemical contaminants in water, sediment or soil by, adding a combination of fibrous organic matter and certain multi-valent metal particles to the water sediment or soil.
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 September 28, 1992 and granted September 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2014.
- 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.