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Patent US2682473A successfully refreshed from Google Patents.
US2682473A
Expired / Lapsed
US
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Stabilization of organic compounds
Assignee: Universal Oil Products Co
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Filing: 1949-09-29
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Granted: 1954-06-29
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Expires: 1969-09-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Thompson
- 👤 Joseph A Chenicek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:01
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/771; C08; C08F; C08F2/00; C08F2/38; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/04; C10M2207/044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN ORGANIC MATERIAL NORMALLY TENDING TO DETERIORATE IN STORAGE DUE TO OXIDATION CONTAINING AN INHIBITOR COMPRISING A HYDROXY-DIHYDRONAPHTHO-(1,2-B)-FURAN IN WHICH SAID HYDROXY GROUP IS ATTACHED TO THE BENZENE RING DIFFERENT FROM THE ONE TO WHICH THE FURAN RING IS ATTACHED, AND IN WHICH THE CARBON ATOMS OF THE HETEROCYCLIC RING NOT FUSED TO THE NAPHTHALENE NUCLEUS ARE SUBSTITUTED ONLY BY RAIDCALS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS.
Claim 2
Dependent Claim
71 words
AN ORGANIC MATERIAL NORMALLY TENDING TO DETERIORATE IN STORAGE DUE TO OXIDATION CONTAINING AN INHIBITOR COMPRISING A HYDROXY-DIHYDRONAPHTHO-(1,2-B)-FURAN IN WHICH SAID HYDROXY GROUP IS ATTACHED TO THE BENZENE RING DIFFERENT FROM THE ONE TO WHICH THE FURAN RING IS ATTACHED, AND IN WHICH THE CARBON ATOMS OF THE HETEROCYCLIC RING NOT FUSED TO THE NAPHTHALENE NUCLEUS ARE SUBSTITUTED ONLY BY RAIDCALS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |