Information processing device
US4587409A · kind A · utility
17Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1983 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Nov 25, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S283/904
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
An electronic bookkeeping device is useful in association with use of credit cards for controlling use of various credit cards. The device stores data relative to the extent of use of each card, and assists a user in making the most effective use of a plurality of credit cards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.