Time-temperature exposure indicator with delayed threshold response
US12140480B2 · kind B2 · utility
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19References
41Claims
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Key dates
| Filing date | Dec 8, 2020 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Dec 8, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K2207/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Environmental indicators for monitoring a predetermined environmental exposure, for example, an historical heat exposure such as a cumulative ambient heat exposure and/or a peak ambient heat exposure, may include an environmental indicator material. The environmental indicator may be configured to attach to a host product for monitoring the predetermined environmental exposure of the host product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.