Aerosol-forming composition for the purpose of extinguishing fires and method for the preparation of this composition
CA 2203986 C · Owner: Andreev, Vladimir Andreevitch · Inventors: Andreev, Vladimir Andreevitch; Sidorov, Alexey Ivanovitch; Yemelyanov, Valeriy Nilovitch
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a pyrotechnical aerosol-forming composition for the, purpose of extinguishing fires in confined spaces containing potassium nitrate in a, quantity of 67-72 % by mass phenolformaldehyde resin in a quantity of 8-12% by mass and dicyandiamide as the balance, wherein the particles of the potassium nitrate comprise a maximum average diameter of 25 µm the particles of the, phenolformaldehyde resin comprise a maximum average diameter of 100 µm and the partides of the dicyandiamide comprise a maximum average diameter of 15 µm. A further object of the invention is a method for the preparation of the composition which can be manufactured in conventional installations …
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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 April 29, 1997 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2019.
- 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
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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.