Sensors and systems for detecting environmental conditions or changes
US7812731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2006 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Sep 14, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Sensors and systems for detecting predetermined environmental conditions or changes may include a device capable of storing, representing, or providing information, and a shield. The shield may be disposed proximate the device. The shield may have a first condition and a second condition. In the first condition the shield is configured to prevent access to information stored in or on, represented by or provided by the device. In the second condition the shield is configured to permit access to information stored in or on, represented by or provided by the device. The shield may be configured to transition from the first condition to the second condition when the shield is exposed to the predetermined environmental condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.