Lightweight, soundproofing, insulation and fireproofing material and method
CA 1329984 C · Owner: Miller, Dennis C. · Inventors: Miller, Dennis C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract A lightweight soundproofing, insulation and fireproofing material and method is disclosed. A dry composition is provided which includes 60-80% by weight of an inorganic lightweight nonflammable fibrous material 16.67-, 36.67% by weight of an organic lightweight normally-flammable fibrous material, and 3.33-10% by weight of a refracted clay material. The non-flammable fibrous material is pulled apart to provide a high temperature loose fiber material, the normally-flammable fibrous material is shredded and the refracted clay material is embedded in the normallyflammable fibrous material after shredding to reduce the flammability thereof. Thereafter, the nonflammable fibrous material …
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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 June 7, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2011.
- 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.