Electronic postage meter having check date warning
US4283721A · kind A · utility
15Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1979 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Oct 30, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00548
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic postal meter is provided with a date setter having an access door coupled to a switch. The position of the switch is signalled to the internal computer, in order to effect a warning indication if the access or dater door is open. The computer further inhibits operation of the postal meter upon the initial application of power to the postal meter, until the dater door has been opened and closed at least once.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.