System for maintaining continuous total of refund amounts due a customer and for allowing customer designation of the amount of refund to be applied to a purchase
Patent 5200889 Issued on April 6, 1993. Estimated Expiration Date: 
August 26, 2011. 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 26, 2011. 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 ReferencesDual-screen data display terminal for data processing units Purchasing system with rebate feature POS register system with combined optical scanner and weighing machine Method and apparatus for dispensing discount coupons Electronic scale device with printer for retail stores Centralized consumer cash value accumulation system for multiple merchants Patent #: 4941090 InventorAssigneeApplicationNo. 751627 filed on 08/26/1991US Classes:705/14, Distribution or redemption of coupon, or incentive or promotion program235/380Credit or identification card systemsExaminersPrimary: Hayes, Gail O.Attorney, Agent or FirmForeign Patent References
International ClassG06F 015/21Foreign Application Priority Data1988-10-31 JPAbstractA sales-data-processing apparatus having a storing device for storing rebate information or the equivalent thereof, an input device for entering a desired rebate which a customer wants to be refunded from the rebate, a subtracting device for subtracting the desired rebate from the total price of the current purchase, and a display device for displaying the result of the subtraction. The apparatus makes it possible to refund the desired rebate at each purchase. | |
