A device for ventilating vehicle chairs
CA 2231997 C · Owner: Walinov Ab · Inventors: Larsson, Stefan Gunnar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for ventilating chairs comprises an air-permeable covering portion (13, 14) which is applied over the filling (7) of the chair an insert (15; , 59) located between the covering portion and the filling and a suction device (26) which through a system of suction openings in the covering (57 60) and , the insert (40, 56) evacuates the ventilating air. According to the invention the insert (15) is joined with the covering (9) of the chair to an integrated unit, which is tightened against the filling (7) and from the insert (15) , there extends a duct connection (40 25) tightly separated from the filling which leads the air to the suction device.
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 September 12, 1996 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2018.
- 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.