Secured access checking system enabling the automatic transfer of entitlement to produce keys
US6380843B1 · kind B1 · utility
3Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1999 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | May 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C9/27
- WIPO fieldControl
- WIPO sectorInstruments
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.