Patent US2808416A successfully refreshed from Google Patents.
US2808416A
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Hydrazides of benzoic acid and derivatives thereof as antioxidants for fats and oils
Assignee: Eastman Kodak Co
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Filing: 1954-08-23
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Granted: 1957-10-01
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Expires: 1974-08-23
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 Gerald R Lappin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:40
CPC Classifications
C; C07; C07C; C07C243/00; C07C243/24; C07C243/38; C11; C11B; C11B5/00; C11B5/0042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A STABILIZED PRODUCT COMPRISING A SUBSTRATE SELECTED FROM THE GROUP CONSISTING OF FATS AND FATTY OILS CONTAINING FROM ABOUT 0.001@ TO ABOUT 1% BY WEIGHT OF AN ANTIOXIDANT SELECTED FROM THE GROUP CONSISTING OF BENZHYDRAZIDE AND COMPOUNDS HAVING THE FOLLOWING GENERIC FORMULA:
Claim 2
Dependent Claim
42 words
A STABILIZED PRODUCT COMPRISING A SUBSTRATE SELECTED FROM THE GROUP CONSISTING OF FATS AND FATTY OILS CONTAINING FROM ABOUT 0.001@ TO ABOUT 1% BY WEIGHT OF AN ANTIOXIDANT SELECTED FROM THE GROUP CONSISTING OF BENZHYDRAZIDE AND COMPOUNDS HAVING THE FOLLOWING GENERIC FORMULA:
References Cited (Backward Citations)
US2463462A
Cited
GB423938A
Cited
US2430031A
Cited
US2463461A
Cited
US2716663A
Cited
US2763684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |