Patent US3192031A successfully refreshed from Google Patents.
US3192031A
Expired / Lapsed
US
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Coated fertilizer compositions
Assignee: Sunoco Inc
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Filing: 1962-06-21
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Granted: 1965-06-29
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Expires: 1982-06-21
Abstract
No abstract record available.
Inventors
- 👤 Zaayenga Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:38
CPC Classifications
C; C05; C05G; C05G5/00; C05G5/30; C05G5/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A FERTILIZER COMPOSITION COMPRISING SOLID, WATERSOLUBLE FERTILIZER PARTICLES COATED WITH A THIN FILM OF AN ESSENTIALLY DRY FINELY DIVIDED INERT MATERIAL HAVING A PARTICLE SIZE OF 98-100% THROUGH 120 MESH, SUBSTANTIALLY ALL OF SAID COATED FERTILIZER PARTICLES BEING SURROUNDED BY AND ENCASED IN A WAX, SAID SOLID FERTILIZER BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIUM NITRATE, UREA, AMMONIUM SULFATE, CALCIUM CYANAMIDE, SODIUM NITRATE, POTASSIUM NITRATE, AMMONIUM PHSOPHATE, POTASH, AND MIXTURES THEREOF, PROPORTIONS OF THE INGREDIENTS BEING AS FOLLOWS: FERTILIZER, A MAJOR PROPORTION; WAX, 5-49%; ESSENTIALLY DRY FINELY DIVIDED INERT MATERIAL, 0.1 TO 5.0% BY WEIGHT BASED ON THE FERTILIZER COMPONENT.
Claim 2
Dependent Claim
101 words
A FERTILIZER COMPOSITION COMPRISING SOLID, WATERSOLUBLE FERTILIZER PARTICLES COATED WITH A THIN FILM OF AN ESSENTIALLY DRY FINELY DIVIDED INERT MATERIAL HAVING A PARTICLE SIZE OF 98-100% THROUGH 120 MESH, SUBSTANTIALLY ALL OF SAID COATED FERTILIZER PARTICLES BEING SURROUNDED BY AND ENCASED IN A WAX, SAID SOLID FERTILIZER BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIUM NITRATE, UREA, AMMONIUM SULFATE, CALCIUM CYANAMIDE, SODIUM NITRATE, POTASSIUM NITRATE, AMMONIUM PHSOPHATE, POTASH, AND MIXTURES THEREOF, PROPORTIONS OF THE INGREDIENTS BEING AS FOLLOWS: FERTILIZER, A MAJOR PROPORTION; WAX, 5-49%; ESSENTIALLY DRY FINELY DIVIDED INERT MATERIAL, 0.1 TO 5.0% BY WEIGHT BASED ON THE FERTILIZER COMPONENT.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |