Luminous device providing warning and indication of emergency exit
CA 2428142 C · Owner: Airbus Deutschland Gmbh · Inventors: Friedrich, Peter; Colberg, Joachim; Niemeyer, Anja
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Luminous alerting device for indicating an emergency exit. -The device (1A) comprises a luminous indicator (2A) intended to indicate the emergency exit and capable of being placed in at least one of three different states a standby state, in which it emits a first luminous radiation which is continuous and which exhibits a first intensity an alert state, in which it emits a second luminous radiation which is discontinuous and which exhibits a second intensity greater than said first intensity and a third state, and operating means (3A) for operating the luminous indicator in such a way as to place it in the standby state in a normal situation, in the alert state during an emergency …
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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 May 1, 2003 and granted July 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 1, 2025.
- 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.