Vehicle preheating system
CA 2017503 C · Owner: Reed, Mark E. · Inventors: Reed, Mark E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vehicle preheating system which provides for the preheating of the vehicle interior, as well as other components is, disclosed. The system includes an electrical heating element installed within the heater assembly of the vehicle and is supplied with electrical power by an external source. The standard vehicle heater fan is supplied with electrical power from a transformer and rectifier in the circuit thus using only exter-, nal power rather than vehicle battery power. The system is controlled by a timer controller,which may be preset to activate the heater assembly at some predetermined time prior to vehicle operation, and may provide for other component preheating devices such as engine …
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 May 24, 1990 and granted July 26, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2012.
- 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.