Plant moisture indicator
US4020785A · kind A · utility
5Cited by
4References
2Claims
0Family size
Inventor
Key dates
| Filing date | May 19, 1976 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | May 19, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/167
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A plant moisture indicator is provided comprising a piece of wood cut across the grain with a moisture retardant substance applied to one side of the indicator, whereby the indicator will tend to bend in the presence of moisture and straighten up when dry. Preferably the device is constructed in the form of a U having two such opposed members, whereby the U will close in the presence of moisture and open in the absence of moisture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.