Electronic lock box with key presence sensing
US7999656B2 · kind B2 · utility
75Cited by
18References
48Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2006 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Dec 7, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/8216
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An electronic lock box contains a secure compartment for storing keys to a structure. A sensing system allow the lock box to determine whether the contents of the lock box have been replaced as well as ensuring the correct key or object has been returned. The system reports the status of the object back to the central clearinghouse computer through an electronic key or secure memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.