Patent US3598563A successfully refreshed from Google Patents.
US3598563A
Expired / Lapsed
US
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Particulate fertilizer and method
Assignee: Freeport Mcmoran Resource Partners Ltd
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Filing: 1968-04-29
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Granted: 1971-08-10
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Expires: 1988-04-29
Abstract
Abstract WATER-SOLUBLE FERTILIZER PARTICLES OF REDUCED HYGROSCOPICITY AND NUTRIENT RELEASE RATE RESULT FOR A FIRST COATING OF A BLEND OF PETROLEUM RESIDUE AND AIR-BLOWN PETROLEUM RESIDUE, A SECOND COATING OF A PARTING AGENT, AND A THIRD COATING OF CONDITIONING AGENT.
Inventors
- 👤 Wendell D Burch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:33
CPC Classifications
C; C05; C05C; C05C9/00; C05C9/005; C05G; C05G3/00; C05G3/90; C05G5/00; C05G5/30
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |