US3070434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating soil
Assignee: Shell USA Inc
•
Filing: 1959-02-02
•
Granted: 1962-12-25
•
Expires: 1979-02-02
Abstract
No abstract record available.
Inventors
- 👤 James R Turner
- 👤 Austin R Cline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:41
CPC Classifications
C; C05; C05D; C05D9/00; A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
PROCESS FOR FERTILIZING SOIL SIMULTANEOUSLY WITH SULPHUR AND WITH FIXED NITROGEN COMPRISING PASSING A MAJOR STREAM OF LIQUID ANHYDROUS AMMONIA UNDER LIQUIFACTION PRESSURE AND APPROXIMATELY AMBIENT TEMPERATURE FROM A PRESSURE TANK THROUGH A PRESSURE REDUCING ORIFICE AND THROUGH CHECK VALVE MEANS TO PREVENT RETURN OF MIXED FLUID UNDER PRESSURE TO SAID ARIFICE, PUMPING A MINOR STREAM OF AQUEOUS SOLUTION CONTAINING POLYSULFIDE SUITABLE FOR SOIL TREATMENT THROUGH A SECOND PRESSURE REDUCING ORIFICE AND THROUGH CHECK VALVE MEANS TO PREVENT RETURN OF FLUID UNDER PRESSURE TO SAID SECOND ORIFICE, MAINTAINING BOTH STREAMS IN CONTINUOUS MOTION, MINGLING BOTH STREAMS INTO A COMMINGLED CONTINUOUSLY MOVING STREAM, AND PASSING SAID COMMINGLED STREAMS DIRECTLY THROUGH A
Claim 2
Dependent Claim
110 words
PROCESS FOR FERTILIZING SOIL SIMULTANEOUSLY WITH SULPHUR AND WITH FIXED NITROGEN COMPRISING PASSING A MAJOR STREAM OF LIQUID ANHYDROUS AMMONIA UNDER LIQUIFACTION PRESSURE AND APPROXIMATELY AMBIENT TEMPERATURE FROM A PRESSURE TANK THROUGH A PRESSURE REDUCING ORIFICE AND THROUGH CHECK VALVE MEANS TO PREVENT RETURN OF MIXED FLUID UNDER PRESSURE TO SAID ARIFICE, PUMPING A MINOR STREAM OF AQUEOUS SOLUTION CONTAINING POLYSULFIDE SUITABLE FOR SOIL TREATMENT THROUGH A SECOND PRESSURE REDUCING ORIFICE AND THROUGH CHECK VALVE MEANS TO PREVENT RETURN OF FLUID UNDER PRESSURE TO SAID SECOND ORIFICE, MAINTAINING BOTH STREAMS IN CONTINUOUS MOTION, MINGLING BOTH STREAMS INTO A COMMINGLED CONTINUOUSLY MOVING STREAM, AND PASSING SAID COMMINGLED STREAMS DIRECTLY THROUGH A
References Cited (Backward Citations)
US2255026A
Cited
US2231423A
Cited
US2255027A
Cited
US2598121A
Cited
US2650556A
Cited
US2739738A
Cited
US2781612A
Cited
US2878969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |