Patent US2784530A successfully refreshed from Google Patents.
US2784530A
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Method for mixing ammonia with water and introducing the mixture into the soil
Assignee: Flo-Mix Fertilizers Corp
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Filing: 1952-10-31
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Granted: 1957-03-12
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Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 Dugan John Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:45
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A METHOD OF FIXED NITROGEN FERTILIZATION OF SOIL WHICH CONSISTS IN DISCHARGING AMMONIA IN THE MIDST OF AN ANNULAR BLANKETING STREAM OF WATER IN A STREAM MOVED OVER THE SOIL, SAID BLANKETING STREAM SURROUNDING THE AMMONIA WITH SUFFICIENT WATER TO PREVENT THE ESCAPE OF VAPORIZED AMMONIA.
Claim 2
Independent Claim
46 words
A METHOD OF FIXED NITROGEN FERTILIZATION OF SOIL WHICH CONSISTS IN DISCHARGING AMMONIA IN THE MIDST OF AN ANNULAR BLANKETING STREAM OF WATER IN A STREAM MOVED OVER THE SOIL, SAID BLANKETING STREAM SURROUNDING THE AMMONIA WITH SUFFICIENT WATER TO PREVENT THE ESCAPE OF VAPORIZED AMMONIA.
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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) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |