US2755166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing vapor zone corrosion
Assignee: Pure Oil Co
•
Filing: 1951-12-22
•
Granted: 1956-07-17
•
Expires: 1971-12-22
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF MITIGATING CORROSION IN THE VAPOR ZONE OF FERROUS METAL VESSELS CONTAINING SOUR CRUDE OILS COMPRISING MAINTAINING IN VAPOR COMMUNICATION WITH THE VAPORS IN SAID VAPOR ZONE A SOLUTION OF A MIXTURE OF AMMONIUM NITRATE AND AMMONIUM THIOCYANATE IN LIQUID AMMONIA, AND CONTROLLING THE RATE OF EVOLUTION OF AMMONIA BY VARYING THE CONCENTRATION OF ONE OF SAID AMMONIUM COMPOUNDS IN RELATION TO THE CONCENTRATION OF ANOTHER AMMONIUM COMPOUND.
Claim 2
Independent Claim
70 words
A METHOD OF MITIGATING CORROSION IN THE VAPOR ZONE OF FERROUS METAL VESSELS CONTAINING SOUR CRUDE OILS COMPRISING MAINTAINING IN VAPOR COMMUNICATION WITH THE VAPORS IN SAID VAPOR ZONE A SOLUTION OF A MIXTURE OF AMMONIUM NITRATE AND AMMONIUM THIOCYANATE IN LIQUID AMMONIA, AND CONTROLLING THE RATE OF EVOLUTION OF AMMONIA BY VARYING THE CONCENTRATION OF ONE OF SAID AMMONIUM COMPOUNDS IN RELATION TO THE CONCENTRATION OF ANOTHER AMMONIUM COMPOUND.
References Cited (Backward Citations)
US1844475A
Cited
US2185954A
Cited
US2326968A
Cited
US2330051A
Cited
US2357559A
Cited
GB600328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |