Patent US3634248A successfully refreshed from Google Patents.
US3634248A
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Aromatic amine derivatives as stabilizers in organic compositions
Assignee: Mobil Oil AS
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Filing: 1968-06-21
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Granted: 1972-01-11
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Expires: 1988-06-21
Abstract
Abstract NOVEL DERIVATIVES OF AROMATIC AMINES ARE OBTAINED BY REACTING A PROMARY OF SECONDARY AMINE WITH AN ALDEHYDE OR BORIC ACID. THE RESULTING ALDEHYDE PRODUCT OR BORATE ESTER ARE EFFECTIVE STBILIZERS FOR ORGANIC MEDIA AT HIGH TEMPERATURES.
Inventors
- 👤 Harry J Andress Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:11
CPC Classifications
C; C10; C10M; C10M3/00; C10M2205/00; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/108; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/066; C10M2215/14; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/08; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/06; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 0
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |