US2675355A
Expired / Lapsed
US
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Method for inhibiting corrosion
Assignee: Standard Oil Development Co
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Filing: 1951-07-07
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Granted: 1954-04-13
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Expires: 1971-07-07
Abstract
No abstract record available.
Inventors
- 👤 Melba L Lytle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:17
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; Y; Y10; Y10S; Y10S507/00; Y10S507/927; Y10S507/932; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A METHOD FOR REDUCING THE CORROSIVENESS TO CORROSIVE FERROUS METAL OF A CORROSIVE PETROLIFEROUS WELL FLUID WHICH COMPRISES INTRODUCING INTO SAID FLUID A CORROSION-INHIBITING AMOUNT OF THE REACTION PRODUCT OF EBONY FAT DERIVED FROM COTTONSEED OIL AND TRIETHANOLAMINE BOTTOMS, THE REACTION PRODUCT BEING FORMED AT A TEMPERATURE IN THE RANGE OF 320* F. TO 400* F., THE WEIGHT RATIO OF EBONY FAT TO TRIETHANOLAMINE BOTTOMS BEING IN THE RANGE FROM ABOUT 1:1 TO ABOUT 3:2.
Claim 2
Independent Claim
75 words
A METHOD FOR REDUCING THE CORROSIVENESS TO CORROSIVE FERROUS METAL OF A CORROSIVE PETROLIFEROUS WELL FLUID WHICH COMPRISES INTRODUCING INTO SAID FLUID A CORROSION-INHIBITING AMOUNT OF THE REACTION PRODUCT OF EBONY FAT DERIVED FROM COTTONSEED OIL AND TRIETHANOLAMINE BOTTOMS, THE REACTION PRODUCT BEING FORMED AT A TEMPERATURE IN THE RANGE OF 320* F. TO 400* F., THE WEIGHT RATIO OF EBONY FAT TO TRIETHANOLAMINE BOTTOMS BEING IN THE RANGE FROM ABOUT 1:1 TO ABOUT 3:2.
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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |