Auxiliary safety warning lamp system for a vehicle
CA 2257078 C · Owner: Papacy Products Co. Ltd. · Inventors: Wang, Ching-Yung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An auxiliary safety warning lamp system for a vehicle comprising a lamp unit, a remote control unit including a receiver attached to the lamp unit. and an, emitter controlled by an operator and emitting signals to the receiver for controlling, operation of the lamp unit a control unit connected between the receiver and the, lamp unit for identifying the signals emitted from the emitter to the receiver so as to, control functions of the lamp unit and a switch-type power adjustable supply unit, connected to the control unit for supplying power to the lamp unit.
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 30, 1998 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 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.