Patent US3702755A successfully refreshed from Google Patents.
US3702755A
Expired / Lapsed
US
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Moisture indicator for plants
Assignee: WALTER E PALMER
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Filing: 1971-07-21
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Granted: 1972-11-14
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Expires: 1991-07-21
Abstract
Abstract A MOISTURE INDICATOR FOR PLANTS WHICH MAY BE PLACED IN THE SOIL ADJACENT TO A PLANT TO INDICATE THE PLANT''S NEED FOR WATER BEFORE THE PLANTS THEMSELVES BEGIN TO INDICATE THEIR NEED BY WILTING. THE INDICATOR IS PARTICULARLY USEFUL FOR HOUSE PLANTS WHICH ARE FREQUENTLY UNDERWATERED OR OVERWATERED AND IT PROVIDES A POSITIVE VISUAL INDICATION OF A PLANT''S NEED.
Inventors
- 👤 Walter E Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:16
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/22; G01N31/222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |