US3133787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition
Assignee: ExxonMobil Oil Corp
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Filing: 1962-09-04
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Granted: 1964-05-19
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Expires: 1982-09-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Matthias Francis Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/167; C23F11/1673
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE METHOD OF INHIBITING CORROSION OF METAL SURFACES IN CONTACT WITH AN AQUEOUS MEDIUM WHICH COMPRISES EFFECTING SAI CONTACT IN SAID AQUEOUS MEDIUM IN THE PRESENCE OF A CORROSION INHIBITOR ADDED THERETO WHICH IS THE PRODUCT FORMED BY THE ADDITION REACTION OF AN ORGANIC AMINE SELECTED FROM THE GROUP CONSISTING OF ALKYLAMINES WHEREIN THE ALKYL RADICAL HAS FROM 1 TO 14 CARBON ATOMS, ETHANOLAMINE, DIETHANOLAMINE, TRIETHANOLAMINE, ABIETYLAMINES, AND MIXTURES THEREOF WITH A MIXTURE OF A MONOBASIC AND A DIBASIC ACID HAVING THE FORMULA
Claim 2
Independent Claim
83 words
THE METHOD OF INHIBITING CORROSION OF METAL SURFACES IN CONTACT WITH AN AQUEOUS MEDIUM WHICH COMPRISES EFFECTING SAI CONTACT IN SAID AQUEOUS MEDIUM IN THE PRESENCE OF A CORROSION INHIBITOR ADDED THERETO WHICH IS THE PRODUCT FORMED BY THE ADDITION REACTION OF AN ORGANIC AMINE SELECTED FROM THE GROUP CONSISTING OF ALKYLAMINES WHEREIN THE ALKYL RADICAL HAS FROM 1 TO 14 CARBON ATOMS, ETHANOLAMINE, DIETHANOLAMINE, TRIETHANOLAMINE, ABIETYLAMINES, AND MIXTURES THEREOF WITH A MIXTURE OF A MONOBASIC AND A DIBASIC ACID HAVING THE FORMULA
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |