All plastic disposable thermometer
US4345470A · kind A · utility
20Cited by
33References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Feb 1, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A new and useful all plastic disposable thermometer is disclosed, which dispenses with the prior art employment of an aluminum or other metal-based substrate. The novel thermometer can either be employed with opaque indicator means or with heat-sensitive compositions of matter that change color with a change in phase, such as those enumerated in copending application Ser. No. 946,935, filed Sept. 28, 1978, now U.S. Pat. No. 4,232,552.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.