US3573206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions
Assignee: Mobil Oil AS
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Filing: 1969-09-16
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Granted: 1971-03-30
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Expires: 1989-09-16
Abstract
Abstract THE INVENTION PROVIDES LUBRICATING COMPOSITIONS CONTAINING OIL-SOLUBLE PRODUCTS MADE BY HEATING N-PHENYLNAPHTHYLAMINE, N - NAPHTHYL - NAPHTHYLAMINE, MIXTURES THEREOF, OR MIXTURES THEREOF WITH DIPHENYLAMINE, IN THE PRESENCE OF AN OXIDIZING AGENT. THE PRODUCTS IMPART IMPROVED ANTIOXIDANT PROPERTIES TO SAID LUBRICATING COMPOSITIONS.
Inventors
- 👤 Milton Braid
- 👤 Derek A Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:39
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/12; 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; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/066; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/042; C10M2217/043; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; 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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |