US3778375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus-and nitrogen-containing lubricant additives
Assignee: Mobil Oil AS
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Filing: 1972-04-17
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Granted: 1973-12-11
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Expires: 1992-04-17
Abstract
Abstract THE ADDITION OF AN ADDITIVE MADE BY REACTING A PHOSPHONATE WITH OLEAMIDE TO A LUBRICANT IMPARTS IMPROVED FRICTIONAL CHARACTERISTICS THERETO. IN ADDITION, LEVELS OF CORROSION AND CHATTER AND SQUAWKING NOISES RESULTING FROM INTERRUPTED POWER TRANSMISSION ARE ELIMINATED OR REDUCED TO ACCEPTABLE LEVELS.
Inventors
- 👤 M Braid
- 👤 D Quinty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:18
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C10M2205/00; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10M2223/00; C10M2223/06; C10M2223/065; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/10
Claims Analysis
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References Cited (Backward Citations)
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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) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |