Postage meter
US4559444A · kind A · utility
4Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1985 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Feb 14, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00548
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A postage meter having a fixed coplanar printing die is provided with security means to prevent making of fraudulent impressions. This security means involves the use of interposers extending upward and through the space into which an envelope or other workpieces may be inserted. During the legitimate cycling operation these interposers are moved out of guarding position and the postage meter carries out its normal function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.