US2927080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibitor
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1956-08-06
•
Granted: 1960-03-01
•
Expires: 1976-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Roy A Westlund
- 👤 Harry W Rudel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:02
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
AS A CORROSION INHIBITOR THE REACTION PRODUCT OF 0.05 TO 1.0 MOLE OF A PHOSPHORUS SULFIDE, AND 1 MOLE OF AN IMIDAZOLINE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
39 words
A PETROLEUM HYDROCARBON CONTAINING AS A CORROSION INHIBITOR, FROM ABOUT 5 TO 200 PARTS PER MILLION OF THE REACTION PRODUCTS OF 0.05 TO 1.0 MOLE OF A PHOSPHORUS SULFIDE AND 1 MOLE OF AN IMIDAZOLINE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2382775A
Cited
US2539424A
Cited
US2542981A
Cited
US2584977A
Cited
US2614075A
Cited
US2594279A
Cited
US2592497A
Cited
US2644002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |