US3477282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground moisture measuring apparatus
Assignee: HYGRODYNAMICS Inc A CORP OF
•
Filing: 1967-06-29
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Granted: 1969-11-11
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Expires: 1987-06-29
Abstract
No abstract record available.
Inventors
- 👤 Carlton Edward Ohlheiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:41
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/24; G01N33/246; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |