Patent US3119683A successfully refreshed from Google Patents.
US3119683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High nitrogen complete mixed fertilizers
Assignee: JBS USA LLC
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Filing: 1960-03-10
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Granted: 1964-01-28
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Expires: 1980-03-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Kealy
- 👤 Klaus H Eggers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:31
CPC Classifications
C; C05; C05C; C05C9/00; C05C9/02; C22; C22C; C22C28/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD OF PREPARING A FREE-FLOWING, MIXED FERTILIZER COMPOSITION, WHICH COMPRISES: INTRODUCING AN AQUEOUS SOLUTION OF UREA AND FORMALDEHYDE, IN PROPORTIONS SUBSTANTIALLY AS DESIRED IN THE FINAL PRODUCT, INTO SUBSTANTIALLY DRY ACIDIC FERTILIZER SOLIDS, SAID SOLUTION HAVING BEEN COOLED TO A TEMPERATURE BETWEEN ABOUT 30*F. AND 160*F. AND HAVING A UREA-FORMALDEHYDE MOL RATIO OF ABOUT 1-2.75:1, A PH ABOVE ABOUT 6.0, AND CONTAINING SUFFICIENT WATER TO SOLUBILIZE THE UREA; AND ALLOWING SAID SOLUTION TO REACT WHILE IN CONTACT WITH SAID FERTILIZER SOLIDS WHEREBY TO FORM A FREE-FLOWING MIXED FERTILIZER COMPOSITION CONTAINING WATER INSOLUBLE UREA-FORMALDEHYDE CONDENSATION PRODUCTS HAVING AN AVAILABILITY INDEX OF AT LEAST ABOUT 40 AND A MAXIMUM OF ABOUT 10% UNCOMBINED UREA.
Claim 2
Independent Claim
113 words
THE METHOD OF PREPARING A FREE-FLOWING, MIXED FERTILIZER COMPOSITION, WHICH COMPRISES: INTRODUCING AN AQUEOUS SOLUTION OF UREA AND FORMALDEHYDE, IN PROPORTIONS SUBSTANTIALLY AS DESIRED IN THE FINAL PRODUCT, INTO SUBSTANTIALLY DRY ACIDIC FERTILIZER SOLIDS, SAID SOLUTION HAVING BEEN COOLED TO A TEMPERATURE BETWEEN ABOUT 30*F. AND 160*F. AND HAVING A UREA-FORMALDEHYDE MOL RATIO OF ABOUT 1-2.75:1, A PH ABOVE ABOUT 6.0, AND CONTAINING SUFFICIENT WATER TO SOLUBILIZE THE UREA; AND ALLOWING SAID SOLUTION TO REACT WHILE IN CONTACT WITH SAID FERTILIZER SOLIDS WHEREBY TO FORM A FREE-FLOWING MIXED FERTILIZER COMPOSITION CONTAINING WATER INSOLUBLE UREA-FORMALDEHYDE CONDENSATION PRODUCTS HAVING AN AVAILABILITY INDEX OF AT LEAST ABOUT 40 AND A MAXIMUM OF ABOUT 10% UNCOMBINED UREA.
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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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |