Air bag system having a control system for determining the exact inflating time of an air bag
CA 2089807 C · Owner: Fujishima, Hiromichi · Inventors: Fujishima, Hiromichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air bag system able to inflate an air bag at an appropriate time, corresponding to different collision modes, with a simplified construction. The system is provided with a longitudinal acceleration sensor and an acceleration level computing means which computes the degree of acceleration. A rate of change computing means computes the rate of change of the acceleration and detects a characteristic of the rate of change, and sends the resultant data to a first judging means. A first judging means detects the presence of a collision based on the degree of the acceleration and the characteristic of the rate of change of the acceleration. A second judging means is provided in order to detect …
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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 February 18, 1993 and granted October 7, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 18, 2015.
- 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.