Patent US2697111A successfully refreshed from Google Patents.
US2697111A
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Stabilization of fats and oils with tetraoxy derivatives of biphenyl
Assignee: Eastman Kodak Co
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Filing: 1952-03-01
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Granted: 1954-12-14
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Expires: 1972-03-01
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 M B Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:37
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1852; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C09K15/08; C10M; C10M1/00; C10M1/08; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/04; C10M2207/046; C10M2207/40; C10M2207/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A STABILIZED PRODUCT COMPRISING A SUBSTRATE SELECTED FROM THE GROUP CONSISTING OF FATS AND FATTY OILS, CONTAINING FROM ABOUT 0.001% AND 1.0% BY WEIGHT OF AN ANTIOXIDANT WHICH IS 2.2'',5,5''-TETRAHYDROXY-4,4''-DITERTIARY BUTYLBIPHENYL.
Claim 2
Dependent Claim
31 words
A STABILIZED PRODUCT COMPRISING A SUBSTRATE SELECTED FROM THE GROUP CONSISTING OF FATS AND FATTY OILS, CONTAINING FROM ABOUT 0.001% AND 1.0% BY WEIGHT OF AN ANTIOXIDANT WHICH IS 2.2'',5,5''-TETRAHYDROXY-4,4''-DITERTIARY BUTYLBIPHENYL.
References Cited (Backward Citations)
US2591651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |