Patent US2496798A successfully refreshed from Google Patents.
US2496798A
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Rust-inhibiting lubricating composition
Assignee: Texaco Inc
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Filing: 1946-05-14
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Granted: 1950-02-07
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Expires: 1966-05-14
Abstract
No abstract record available.
Inventors
- 👤 Herman D Kluge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:23
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10N; C10N2030/00; C10N2030/12; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A RUST-INHABITING, LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF AN OLEAGINOUS LIQUID HAVING LUBRICATING PROPERTIES AS THE PREDOMINANT CONSTITUENT, AND 0.01-3% BY WEIGHT ON THE BASIS OF THE OLEGINOUS LIQUID OF A TERTIARY DODECYL THIOSUCCINIC ACID SUFFICIENT TO INHIBIT THE FORMATION ON A STEEL SPECIMEN IMMERSED IN SAID COMPOSITION IN THE PRESENCE OF SALT WATER OF BOTH FERRIC OXIDE RUST, AS WELL AS A CREAM-COLORED POWDERY FILM WHICH RESULTS FROM REACTION OF THE ION WITH A N-DODECYL THIOSUCCINIC ACID HAVING THE TERTIARY DODECYL THIOCUCCINIC ACID HAVING THE TERTIARY DODECYL RADICAL LINKED THROUGH THE SULFUR ATOM TO THE CARBON CHAIN OF THE SUCCINIC ACID BETWEEN THE CARBOXYL GROUPS.
Claim 2
Dependent Claim
105 words
A RUST-INHABITING, LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF AN OLEAGINOUS LIQUID HAVING LUBRICATING PROPERTIES AS THE PREDOMINANT CONSTITUENT, AND 0.01-3% BY WEIGHT ON THE BASIS OF THE OLEGINOUS LIQUID OF A TERTIARY DODECYL THIOSUCCINIC ACID SUFFICIENT TO INHIBIT THE FORMATION ON A STEEL SPECIMEN IMMERSED IN SAID COMPOSITION IN THE PRESENCE OF SALT WATER OF BOTH FERRIC OXIDE RUST, AS WELL AS A CREAM-COLORED POWDERY FILM WHICH RESULTS FROM REACTION OF THE ION WITH A N-DODECYL THIOSUCCINIC ACID HAVING THE TERTIARY DODECYL THIOCUCCINIC ACID HAVING THE TERTIARY DODECYL RADICAL LINKED THROUGH THE SULFUR ATOM TO THE CARBON CHAIN OF THE SUCCINIC ACID BETWEEN THE CARBOXYL GROUPS.
References Cited (Backward Citations)
US2371143A
Cited
US2371142A
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US2284241A
Cited
US2293580A
Cited
US2334158A
Cited
US2368606A
Cited
US2369641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |