US2639231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fertilizer process and product
Assignee: Individual
•
Filing: 1952-03-28
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Granted: 1953-05-19
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Expires: 1972-03-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Ernest A Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:41
CPC Classifications
C; C05; C05B; C05B1/00; C05B1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE METHOD OF MAKING A COMPLETE FERTILIZER BASE CONTAINING IN AVAILABLE FORM THE PRIMARY, SECONDARY AND ALSO THE TRACE ELEMENTS ESSENTIAL TO PLANT GROWTH WHICH COMPRISES COMBINING RELATIVELY SMALL WEIGHTS OF AMMONIUM CHLORIDE AND A SOLUBLE FERROCYANIDE WITH A RELATIVELY LARGE WEIGHT OF SEA WATER AND IN THE PRESENCE OF A REACTION INDUCING WEIGHT OF ALCOHOL TO DERIVE A PRECIPITATE; SEPARATING, DRYING AND GRINDING SAID PRECIPITATE; COMBINING THE PRECIPITATE WITH AN EQUAL OR LESSER WEIGHT OF SEWAGE SLUDGE AND IN THE THE PRESENCE OF A SLUDGE DIGESTING WEIGHT OF CONCENTRATED SULFURIC ACID; COMBINING WITH THE PRECIPITATE AND SLUDGE A SIMILAR ACID NEUTRALIZING WEIGHT OF A GROUND PHOSPHATE; ADDING THERETO A RELATIVELY LARGER WEIGHT OF DRIED SEWAGE SLUDGE; AND DRYING AND GRINGING THE FINAL PRODUCT.
Claim 2
Independent Claim
124 words
THE METHOD OF MAKING A COMPLETE FERTILIZER BASE CONTAINING IN AVAILABLE FORM THE PRIMARY, SECONDARY AND ALSO THE TRACE ELEMENTS ESSENTIAL TO PLANT GROWTH WHICH COMPRISES COMBINING RELATIVELY SMALL WEIGHTS OF AMMONIUM CHLORIDE AND A SOLUBLE FERROCYANIDE WITH A RELATIVELY LARGE WEIGHT OF SEA WATER AND IN THE PRESENCE OF A REACTION INDUCING WEIGHT OF ALCOHOL TO DERIVE A PRECIPITATE; SEPARATING, DRYING AND GRINDING SAID PRECIPITATE; COMBINING THE PRECIPITATE WITH AN EQUAL OR LESSER WEIGHT OF SEWAGE SLUDGE AND IN THE THE PRESENCE OF A SLUDGE DIGESTING WEIGHT OF CONCENTRATED SULFURIC ACID; COMBINING WITH THE PRECIPITATE AND SLUDGE A SIMILAR ACID NEUTRALIZING WEIGHT OF A GROUND PHOSPHATE; ADDING THERETO A RELATIVELY LARGER WEIGHT OF DRIED SEWAGE SLUDGE; AND DRYING AND GRINGING THE FINAL PRODUCT.
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) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |