US3677943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel phosphorus-containing pyrimidines and lubricants containing same
Assignee: Mobil Oil AS
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Filing: 1970-12-24
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Granted: 1972-07-18
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Expires: 1990-12-24
Abstract
Abstract THE INVENTION PROVIDES NOVEL PHOSPHORUS-CONTAINING AMINOPYRIMIDINES. ALSO PROVIDED ARE LUBRICANT COMPOSITIONS CONTAINING THESE PRODUCTS WHICH HAVE IMPROVED ANTIOXIDANT AND EXTREME PRESSURE PROPERTIES.
Inventors
- 👤 John C Nnadi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:52
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/109; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |