Portable auxiliary automobile heater
Patent 4874921 Issued on October 17, 1989. Estimated Expiration Date: 
June 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.
June 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 ReferencesPortable battery operated hot-cold storage unit 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. 064082 filed on 06/19/1987US Classes:219/202, Vehicle or vehicle component237/12.3AThe heating is effected by circulated airExaminersPrimary: Bennett, HenryAttorney, Agent or FirmInternational ClassB60L 001/02AbstractA portable compact auxiliary automotive heater is provided for timed heating of an automotive interior including selective AC/DC power input wiring enabling initial pre-heating of an automotive interior prior to use by AC power and switching to DC power to continuously warm an automotive interior. | |
