Method and device for preventing persons from falling asleep
CA 2281874 A1 · Owner: Rippbauer, Gert · Inventors: Rippbauer, Gert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To prevent persons driving a vehicle from falling asleep the invention provides for a localized area on the head of the person concerned to be cooled. Cooling is preferably achieved by means of a cooled moving gas or by , application of a plate (10) which is in thermal contact with a cooling device (6). The cooling device (6) is preferably embodied by a Peltier cell. Cooling of a localized area on the head can keep a sleepy person awake reliably and for a longer period.
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, and the Claude kit works from them.
Why it's free to use
- Filed December 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 15, 2020.
- 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.