US2586191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salts of sulfonated ethers of hydrogenated cardanol as inhibitors for mineral hydrocarbon oils
Assignee: Harvel Corp
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Filing: 1948-08-21
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Granted: 1952-02-19
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Expires: 1968-08-21
Abstract
No abstract record available.
Inventors
- 👤 Wasserman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:49
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A NOVEL COMPOSITION SELECTED FROM THE GROUP CONSISTING OF MOTOR LUBRICATING OILS, AVIATION OILS, DIESEL OILS AND TURBINE OILS AND COMPRISING A MINERAL HYDROCARBON OIL WHOSE FLASH POINT IS NO LOWER THAN 250* F. AND A COMPOUND FOR IMPROVING THE CORROSION AND OXIDATION CHARACTERISTICS OF SAID OIL IN SERVICE, THE RATIO BY WEIGHT OF SAID OIL TO SAID COMPOUND BEING IN THE RANGE OF 1000-0.1 TO 100-5 SAID COMPOUND HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
73 words
A NOVEL COMPOSITION SELECTED FROM THE GROUP CONSISTING OF MOTOR LUBRICATING OILS, AVIATION OILS, DIESEL OILS AND TURBINE OILS AND COMPRISING A MINERAL HYDROCARBON OIL WHOSE FLASH POINT IS NO LOWER THAN 250* F. AND A COMPOUND FOR IMPROVING THE CORROSION AND OXIDATION CHARACTERISTICS OF SAID OIL IN SERVICE, THE RATIO BY WEIGHT OF SAID OIL TO SAID COMPOUND BEING IN THE RANGE OF 1000-0.1 TO 100-5 SAID COMPOUND HAVING THE FOLLOWING FORMULA:
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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) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |