Patent US195115A successfully refreshed from Google Patents.
Patent US3095377A successfully refreshed from Google Patents.
US3095377A
Expired / Lapsed
US
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Lubricating composition having a reduced coking tendency
Assignee: Gulf Research and Development Co
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Filing: 1960-10-10
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Granted: 1963-06-25
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Albert J Hart
- 👤 Alfred M Henke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:58
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/50; C07D333/76; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/10; C10M2203/102; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROGENATED MINERAL LUBRICATING OIL AND A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE COKING TENDENCIES OF THE OIL, OF A COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Dependent Claim
34 words
A LUBRICATING COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROGENATED MINERAL LUBRICATING OIL AND A SMALL AMOUNT, SUFFICIENT TO IMPROVE THE COKING TENDENCIES OF THE OIL, OF A COMPOUND HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
GB465825A
Cited
US2160293A
Cited
US2528782A
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US2479513A
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US2571384A
Cited
US2528785A
Cited
US2665234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |