Automotive pre-heater
Patent 4847468 Issued on July 11, 1989. Estimated Expiration Date: 
August 19, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 19, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2067102 2654826 2717305 2819373 3213994 3313915 3673379 3870855 Electric heater for warming the interior of a car Electric heating system for heating the interior of a motor vehicle prior to starting Patent #: 4293759 InventorApplicationNo. 07/086825 filed on 08/19/1987US Classes:219/203, Windshield or window165/41, WITH VEHICLE FEATURE219/207, Carburetor237/12.3A, The heating is effected by circulated air237/12.3RVehicleExaminersPrimary: Bennett, HenryAttorney, Agent or FirmInternational ClassB60H 1/00 (20060101)AbstractAn automotive pre-heater is set forth for use in cold climates for warming the interior and selective portions of an automobile prior to starting and operation. A compact housing secured by conventional bracketry to the interior of an automobile is provided. Fan means operated by a programmable timing element provide warmth to the interior of an automobile. Optional heating outlets are provided to further enable pre-warming of selected automobile portions such as the carburetor, battery, and engine block. A windshield defrosting conduit is provided to enable windshield defrosting. The pre-heater is powered electrically from a power source external of the automobile. | |
