US2966458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition and corrosion inhibited hydrocarbon
Assignee: Sinclair Refining Co
•
Filing: 1957-04-15
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Granted: 1960-12-27
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Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas O Counts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:56
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C23F11/163; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2431; C10L1/2437; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A LIQUID PETROLEUM HYDROCARBON CONTAINING MOISTURE HAVING ADMIXED THEREWITH AN AMOUNT EFFECTIVE TO SUBSTANTIALLY INHIBIT THE CORROSION OF IRON AND STEEL OF A SALT OF AN ACID OF THE FORMULA RCH(SO2OH)COOH, THE SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIUM AND AMINE SALTS, THE SAID BEING SELECTED FROM THE GROUP CONSISTING OF THOSE IN WHICH ONLY THE SULFONIC ACID GROUP HAS BEEN NEUTRALIZED AND THOSE IN WHICH BOTH THE SULFONIC ACID GROUP AND THE CARBOXYL GROUP HAVE BEEN NEUTRALIZED, R BEING AN ALKYL RADICAL CONTAINING FROM 6 TO 20 CARBON ATOMS.
Claim 2
Dependent Claim
93 words
A LIQUID PETROLEUM HYDROCARBON CONTAINING MOISTURE HAVING ADMIXED THEREWITH AN AMOUNT EFFECTIVE TO SUBSTANTIALLY INHIBIT THE CORROSION OF IRON AND STEEL OF A SALT OF AN ACID OF THE FORMULA RCH(SO2OH)COOH, THE SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIUM AND AMINE SALTS, THE SAID BEING SELECTED FROM THE GROUP CONSISTING OF THOSE IN WHICH ONLY THE SULFONIC ACID GROUP HAS BEEN NEUTRALIZED AND THOSE IN WHICH BOTH THE SULFONIC ACID GROUP AND THE CARBOXYL GROUP HAVE BEEN NEUTRALIZED, R BEING AN ALKYL RADICAL CONTAINING FROM 6 TO 20 CARBON ATOMS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |