Wetness signaling device
US6583722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention can provide a distinctive article (20) having a monitored portion (22), and a status signaling device (24) for communicating a change in status of the monitored portion. The status signaling device includes a sensor (26) which can indicate a change of state that occurs when said monitored portion (22) of the article (20) changes from a first condition to a different, second condition. A passive electronic transponder (28) can be cooperatively connected with the sensor (26). The transponder (28) can be configured to receive electromagnetic input energy which has been provided to the transponder at a predetermined input frequency, and can be configured to respond with operative indicator data when the monitored portion (22) is in the second condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.