Earthworks construction system
CA 1060052 A · Owner: Dresser Industries · Inventors: Louden, Lester R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An earthworks is constructed by consolidating solids and/or slurries and using the consolidated material for constructing the earthworks. A quantity of less than 150 grams of hydraulic cement and a quantity of soluble alkali metal silicate containing less than 11 grams of SiO2 are mixed with each liter of the solids and/or slurry to produce a water insoluble solidified material. The material this produced is used for the construction of the earthworks. The material can be worked in with other solids, the material will not leach chemicals and the material does not break down into colloidal size particles that would remain suspended in water. -1a-
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
- Granted August 7, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 7, 1996.
- 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.