US2728728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-corrosion turbine oil
Assignee: TIDE WATER ASSOCIATED OIL Co
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Filing: 1951-09-28
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Granted: 1955-12-27
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Expires: 1971-09-28
Abstract
No abstract record available.
Inventors
- 👤 Vaughn Samuel Clyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:46
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/24; C10M2215/26; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10N; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A HYDROCARBON LUBRICATING OIL CONTAINING IN SOLUTION AS AN ESSENTIAL RUST-INHIBITING COMPONENT THE PRODUCT RESULTING FROM THE ADMIXING OF AT LEAT 0.005* BY WEIGHT OF ALKYL ACID PHOSPHATE HAVING FROM 8 TO 16 CARBON ATOMS PER ALKYL GROUP AND FURFURYL AMINE IN QUANTITY FROM 50% TO 150% OF THE AMOUNT THEORETICALLY REQUIRED TO NEUTRALIZE THE ALKYL ACID PHOSPHATE.
Claim 2
Dependent Claim
58 words
A HYDROCARBON LUBRICATING OIL CONTAINING IN SOLUTION AS AN ESSENTIAL RUST-INHIBITING COMPONENT THE PRODUCT RESULTING FROM THE ADMIXING OF AT LEAT 0.005* BY WEIGHT OF ALKYL ACID PHOSPHATE HAVING FROM 8 TO 16 CARBON ATOMS PER ALKYL GROUP AND FURFURYL AMINE IN QUANTITY FROM 50% TO 150% OF THE AMOUNT THEORETICALLY REQUIRED TO NEUTRALIZE THE ALKYL ACID PHOSPHATE.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |