Process and system of wasting fly ash and product produced thereby
CA 1193489 A · Owner: American Fly Ash Company · Inventors: Dunbar, Alan R.; Nowicki, Mitchell L.; Pound, Joseph H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for disposing of fly ash together with water or liquid industrial waste and, the product produced thereby, in an environmentally acceptable manner which includes combining dry fly ash with a liquid additive in an amount of about 5% - 25% of weight of liquid additive to weight of fly ash in a mixing operation which closely controls the liquid additive to yield a uniformly condition product which can be subjected to earth handling equipment pressures immediately and which eliminates cell preparation and greatly reduces leaching at the disposal site.
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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
- Granted September 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2002.
- 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.