Tire pressure control system
CA 2258983 C · Owner: Kis, Janos · Inventors: Kis, Janos
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tire pressure control system and method includes a pneumatic control uni a, pressure sensor, a rotary seal associated the tire and with a wheel valve rotating with the, tire). The system is connected to a compressed air source and the control unit is connected, through a connecting line and the rotary seal with the wheel valve. The position of the wheel, valve is a function of the pressure in the connecting line. To inflate and vent a tire and to, reduce the number of components the wheel valve has a closed position, an open position, wherein a connection is established between the control unit and the tire and , a venting, position that opens to the atmosphere. The wheel valve is …
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 January 27, 1999 and granted December 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2021.
- 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.