Gas-generating composition
CA 1331513 C · Owner: Hayashi, Minoru · Inventors: Yano, Chitoshi; Kazumi, Takashi; Hayashi, Minoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
Provided herein is a gas-generating composition which forms combustion residues that can be easily captured. The gas-generating composition is composed of an azide of alkali metal or alkaline earth metal, oxidizer, and 0.1 to 10 wt% of one or two kinds of solder glass represented by BaO?SiO2?PbO?Alkali or B2O3?TiO3?SiO2?Na2O. The incorporation of solder glass reduces the weight of the filter to capture combustion residues by 5 to 30 wt%.
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.
Why it's free to use
- Granted August 23, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 23, 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.