Air bag inflation gas generator
CA 2004550 C · Owner: Kawaguchi, Masaaki · Inventors: Takahashi, Sakae; Kamiji, Koichi; Kawaguchi, Masaaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
This invention relates to an air bag inflation gas generator to feed gas for inflation of air bags such as air bags for absorbing collision shocks, life jackets rafts, and escape chutes. The air bag inflation gas generator according to the present invention has a combustion chamber comprising a bottom-closed cylinder of a housing body and a lid covering the opening of the bottom-closed cylinder. The housing body comprises the bottom-closed cylinder a flange, extending outward and formed integrally with the opening of the bottom-closed cylinder, and an external cylinder formed on the periphery of the flange and bent toward the bottom of the housing body. A plenum chamber is formed by …
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
- Filed December 4, 1989 and granted March 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 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.