Power-supply/battery back-up power supply/battery charger combination
Patent 4760322 Issued on July 26, 1988. Estimated Expiration Date: 
January 15, 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.
January 15, 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 ReferencesPower-supply/battery back-up power supply/battery charger combination Patent #: 4672293 InventorAssigneeApplicationNo. 07/003649 filed on 01/15/1987US Classes:320/128, With charging307/66Storage battery or accumulatorExaminersPrimary: Hickey, R. J.Attorney, Agent or FirmInternational ClassH02J 9/06 (20060101)AbstractA. Power supply comprising an AC to DC power supply and a DC to DC power supply and a DC battery charging circuit within a single device, which device provides continuous DC power to a load regardless of the presence or absence of the AC power source. | |
