Patent US2804383A successfully refreshed from Google Patents.
US2804383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complete concentrated mixed fertilizer
Assignee: Individual
•
Filing: 1954-05-03
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Granted: 1957-08-27
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Expires: 1974-05-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Ray
- 👤 Company The Stamford Trust
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:21
CPC Classifications
C; C05; C05B; C05B1/00; C05B1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
246 words
A METHOD OF PRODUCING A HIGHLY CONCENTRATED GRANULAR MIXED FERTILLIZER, WHICH IS RESISTANT TO ABSORPTION OF ATMOSPHERIC MOISTURE, WHEREIN THE N2 IS DERIVED PRINCIPALLY FROM KNO3 AND THE FERTILLIZER CONTAINS THE PRINCIPAL PLANT FOODS N2, P2O5 AND K2O IN TOTAL CONCENTRATION OF AT LEAST ABOUT 50% ANAD IN DESIRED RELATIVE PROPORTION BY WEIGHT WITHIN THE RANGES OF FROM ABOUT 3.2-5.3 OF N2: FROM ABOUT 9.3-12.8 OF P205: FROM ABOUT 8.0-12.9 OF K20, WHICH COMPRISES FORMING AN AQUEOUS BODY CONTAINING A SOLUTION OF KNO3 WHICH IS PRESENT IN AMOUNT SUFFCIENT TO SUPPLY NOT LESS THAN ABOUT 70% OF SAID N2 AND IS SUBSTANTIALLY FREE OF NANO3 AND AN AMOUNT OF A PLANT FOOD SUBSTANCE SELECT FROM THE GROUP CONSISTING OF (1) A POTASSIUM SALT OTHER THAN NITRATE AND (2) A NITROGEN SOLUTION, IN A QUANTITY WHICH ADJUSTS THE CONTENT OF ONE OF THE PLANT FOODS N2 AND K20 TO THE DESIRED RELATIVE PROPORTIONS WITHIN THE ABOVE STATED RANGE OF N2 AND K20, MIXING THIS ADJUSTED AQUEOUS BODY WITH A QUANTITY OF CONCENTRATED SUPERPHOSPHATE SUPPLYING ALL OF THE DESIRED P205 WITHIN THE ABOVE STATED RANGE OF P205, THEREBY FORMING A FLUID AQUEOUS MIXTURE, AND DRYING THE FLUID MIXTURE TO PRODUCE A GRANULAR FERTILIZER MIX, SAID MIX HAVING AT LEAST 90% OF ITS CONTENT BY WEIGHT IN THE FORM OF SAID KNO3 AND SAID SUPERPHOSPHATE, SAID KNO3 SUPPLYING NOT LESS THAN ABOUT 70% OF THE N2, SAID MIX HAVING A TOTAL PLANT FOOD NUTRIENT CONTENT IN EXCESS OF 50%.
Claim 2
Independent Claim
246 words
A METHOD OF PRODUCING A HIGHLY CONCENTRATED GRANULAR MIXED FERTILLIZER, WHICH IS RESISTANT TO ABSORPTION OF ATMOSPHERIC MOISTURE, WHEREIN THE N2 IS DERIVED PRINCIPALLY FROM KNO3 AND THE FERTILLIZER CONTAINS THE PRINCIPAL PLANT FOODS N2, P2O5 AND K2O IN TOTAL CONCENTRATION OF AT LEAST ABOUT 50% ANAD IN DESIRED RELATIVE PROPORTION BY WEIGHT WITHIN THE RANGES OF FROM ABOUT 3.2-5.3 OF N2: FROM ABOUT 9.3-12.8 OF P205: FROM ABOUT 8.0-12.9 OF K20, WHICH COMPRISES FORMING AN AQUEOUS BODY CONTAINING A SOLUTION OF KNO3 WHICH IS PRESENT IN AMOUNT SUFFCIENT TO SUPPLY NOT LESS THAN ABOUT 70% OF SAID N2 AND IS SUBSTANTIALLY FREE OF NANO3 AND AN AMOUNT OF A PLANT FOOD SUBSTANCE SELECT FROM THE GROUP CONSISTING OF (1) A POTASSIUM SALT OTHER THAN NITRATE AND (2) A NITROGEN SOLUTION, IN A QUANTITY WHICH ADJUSTS THE CONTENT OF ONE OF THE PLANT FOODS N2 AND K20 TO THE DESIRED RELATIVE PROPORTIONS WITHIN THE ABOVE STATED RANGE OF N2 AND K20, MIXING THIS ADJUSTED AQUEOUS BODY WITH A QUANTITY OF CONCENTRATED SUPERPHOSPHATE SUPPLYING ALL OF THE DESIRED P205 WITHIN THE ABOVE STATED RANGE OF P205, THEREBY FORMING A FLUID AQUEOUS MIXTURE, AND DRYING THE FLUID MIXTURE TO PRODUCE A GRANULAR FERTILIZER MIX, SAID MIX HAVING AT LEAST 90% OF ITS CONTENT BY WEIGHT IN THE FORM OF SAID KNO3 AND SAID SUPERPHOSPHATE, SAID KNO3 SUPPLYING NOT LESS THAN ABOUT 70% OF THE N2, SAID MIX HAVING A TOTAL PLANT FOOD NUTRIENT CONTENT IN EXCESS OF 50%.
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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) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |