Synthesized hybrid rock composition, method, and article formed by the method
CA 2611749 C · Owner: Chang, Ian I. · Inventors: Wood, James L.; Chang, Ian I.; Villwock, Robert D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to synthetic hybrid rock compositions articles of , manufacture and related processes employing mineral waste starting materials such as mine tailings, mine development rock ash, slag, quarry fines, and , slimes, to produce valuable articles of manufacture and products which are , characterized by superior physical and structural characteristics including , low porosity, low absorption increased strength and durability, and retained plasticity. The resulting materials are compositionally and chemically distinct from conventional synthetic rock materials as demonstrated by scanning electron microprobe analysis, and are useful in a wide variety of applications, …
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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
- Filed August 9, 2006 and granted July 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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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.