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US3423199A
Expired / Lapsed
US
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Fertilizers containing microand macronutrients
Assignee: Tennessee Valley Authority
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Filing: 1965-09-29
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Granted: 1969-01-21
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Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Otis D Philen Jr
- 👤 Julius Silverberg
- 👤 Melvin M Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02; C05B; C05B13/00; C05B13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2901317A
Cited
US3353949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |