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US3556748A
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US
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Antioxidant mixture of n-phenyl-n'-sec-alkyl-ortho-phenylene-diamine and n,n'-di-sec-alkyl-ortho-phenylenediamine,and use thereof
Assignee: Universal Oil Products Co
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Filing: 1966-07-05
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Granted: 1971-01-19
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Expires: 1986-07-05
Abstract
Abstract A MIXTURE OF N-PHENYL-N''-SEC-ALKYL-ORTHO-PHENYLENEDIAMINE AND AN N,N''-DI-SEC-ALKYL-ORTHO-PHENYLENEDIAMINE. THE MIXTURE IS USEFUL AS AN ANTIOXIDANT IN GASOLINE.
Inventors
- 👤 Rusell F Stedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:10
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10M; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/066
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |