US3043774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compositions
Assignee: Ethyl Corp
•
Filing: 1959-12-28
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Granted: 1962-07-10
•
Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Coffield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:02
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C09K15/24; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/062; C10N; C10N2040/00; C10N2040/08; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A HYDROCARBON LUBRICATING OIL NORMALLY TENDING TO DETERIORATE IN THE PRESENCE OF OXYGEN CONTAINING AN AMOUNT SUFFICIENT TO INHIBIT SUCH DETERIORATION, A SMALL ANTIOXIDANT QUANTITY OF A 3,5-DIALKYL-4-HYDROXYBENZYL AMINE HAVING THE FORMULA
Claim 2
Dependent Claim
32 words
A HYDROCARBON LUBRICATING OIL NORMALLY TENDING TO DETERIORATE IN THE PRESENCE OF OXYGEN CONTAINING AN AMOUNT SUFFICIENT TO INHIBIT SUCH DETERIORATION, A SMALL ANTIOXIDANT QUANTITY OF A 3,5-DIALKYL-4-HYDROXYBENZYL AMINE HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |