US2679459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of organic compounds
Assignee: Universal Oil Products Co
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Filing: 1949-08-19
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Granted: 1954-05-25
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Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
- 👤 Robert H Rosenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:57
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1852; C09; C09K; C09K15/00; C09K15/04; C09K15/06; C09K15/08; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035; C10M; C10M2207/00; C10M2207/04; C10M2207/046
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
EDIBLE FATS AND OILS SUBJECT TO OXIDATIVE WEIGHT OF A 2,6-DIALKYL-4-ALKOXYPHENOL IN WHICH ONE OF THE ALKYL GROUPS IS A BRANCHED CHAIN ALKYL RADICAL OF FROM ABOUT 3 TO ABOUT 10 CARBON ATOMS, THE OTHER ALKYL GROUP CONTAINS NOT MORE THAN ABOUT 4 CARBON ATOMS, AND THE ALKOXY GROUP CONTAINS NOT MORE THAN ABOUT 4 CARBON ATOMS.
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) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |