US2728784A
Expired / Lapsed
US
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Stabilization of oxidizable materials and stabilizers therefor
Assignee: Eastman Kodak Co
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Filing: 1954-03-17
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Granted: 1955-12-27
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Expires: 1974-03-17
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
- 👤 Clarence E Tholstrup
- 👤 Gerald R Lappin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:45
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1857; C10M; C10M1/00; C10M1/08; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; C10M2201/00; C10M2201/085; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/04; C10M2207/044; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/124; C10M2207/28; C10M2207/284; C10M2207/285; C10M2207/40; C10M2207/402; C10M2207/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COMPOSITION OF MATTER COMPRISING A MAJOR PROPORTION OF FATTY MATERIAL NORMALLY SUBJECT TO OXIDATION AND A MINOR PROPORTION EFFECTIVE TO STABILIZE SAID FATTY MATERIAL OF A 3,4-DIHYDROXYPHENYLPROPENONE SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
38 words
A COMPOSITION OF MATTER COMPRISING A MAJOR PROPORTION OF FATTY MATERIAL NORMALLY SUBJECT TO OXIDATION AND A MINOR PROPORTION EFFECTIVE TO STABILIZE SAID FATTY MATERIAL OF A 3,4-DIHYDROXYPHENYLPROPENONE SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |