Patent US3353949A successfully refreshed from Google Patents.
US3353949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preventing the segregation of mixed fertilizer
Assignee: Wyeth Holdings LLC
•
Filing: 1964-07-06
•
Granted: 1967-11-21
•
Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Nau Harold Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:26
CPC Classifications
C; C05; C05D; C05D9/00; C05D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A METHOD FOR PREPARING A GRANULAR PRIMARY FERTILIZER HAVING MICRO AND SECONDARY NUTRIENTS UNIFORMALY DISTIBUTED ON THE SURFACE OF SAID PRIMARY FERTILIZER WHICH COMPRISES THE STEPS OF: PROVIDING A SOLIDS MIXTURE COMPRISING FROM ABOUT 1% TO 15% OF A FINELY-DIVIDED NUTRIENT MATERIAL PASSING THROUGH A -100 MESH TO -400 MESH SCREEN AND SELECTED FROM THE GROUP CONSISTING OF MICRO NUTRIENTS, SECONDARY NUTRIENTS AND MIXTURES THEREOF AND FROM ABOUT 99% TO ABOUT 85% OF A PRIMARY GRANULAR FERTILIZER PASSING THROUGH A -5 TO ABOUT A +20 MESH SCREEN, APPLYING TO SAID SOLIDS MIXTURE A LIQUID CONDITIONER COMPRISING FROM ABOUT 30% TO 70% OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE SUGARS, ALKALI METAL LIGNIN SULFONATES, AND WATER-SOLUBLE FERTILIZERS AND THE BALANCE OF SAID CONDITIONERS BEING WATER, SAID LIQUID CONDITIONERS BEING PRESENT IN THE RANGE OF FROM 1% TO 10%, BASED ON THE WEIGHT OF SAID SOLIDS MIXTURE COMPRISING PRIMARY FERTILIZER AND NUTRIENT, AND, THEREAFTER, MIXING THE OVERALL RESULTANT MIXTURE UNTIL ADHESION OF SAID NUTRICENT MATERIALS ON THE PRIMARY FERTILIZER IS ATTAINED TO THE EXTENT OF AT LEAST 85%.
Claim 2
Independent Claim
179 words
A METHOD FOR PREPARING A GRANULAR PRIMARY FERTILIZER HAVING MICRO AND SECONDARY NUTRIENTS UNIFORMALY DISTIBUTED ON THE SURFACE OF SAID PRIMARY FERTILIZER WHICH COMPRISES THE STEPS OF: PROVIDING A SOLIDS MIXTURE COMPRISING FROM ABOUT 1% TO 15% OF A FINELY-DIVIDED NUTRIENT MATERIAL PASSING THROUGH A -100 MESH TO -400 MESH SCREEN AND SELECTED FROM THE GROUP CONSISTING OF MICRO NUTRIENTS, SECONDARY NUTRIENTS AND MIXTURES THEREOF AND FROM ABOUT 99% TO ABOUT 85% OF A PRIMARY GRANULAR FERTILIZER PASSING THROUGH A -5 TO ABOUT A +20 MESH SCREEN, APPLYING TO SAID SOLIDS MIXTURE A LIQUID CONDITIONER COMPRISING FROM ABOUT 30% TO 70% OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE SUGARS, ALKALI METAL LIGNIN SULFONATES, AND WATER-SOLUBLE FERTILIZERS AND THE BALANCE OF SAID CONDITIONERS BEING WATER, SAID LIQUID CONDITIONERS BEING PRESENT IN THE RANGE OF FROM 1% TO 10%, BASED ON THE WEIGHT OF SAID SOLIDS MIXTURE COMPRISING PRIMARY FERTILIZER AND NUTRIENT, AND, THEREAFTER, MIXING THE OVERALL RESULTANT MIXTURE UNTIL ADHESION OF SAID NUTRICENT MATERIALS ON THE PRIMARY FERTILIZER IS ATTAINED TO THE EXTENT OF AT LEAST 85%.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |