Deterioration indicator and a product having the same
US6644236B2 · kind B2 · utility
2Cited by
39References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | May 30, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49734
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A deterioration indicator for a resin mold member in a product includes a deteriorating state checking portion configured to allow evaluation of a deterioration state of the resin mold member. The deteriorating state checking portion includes a material whose weather resistance value, &Dgr;E, is less than a weather resistance value, &Dgr;E, of the resin mold member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.