Patent US2433593A successfully refreshed from Google Patents.
US2433593A
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Antioxidants and method of producing same
Assignee: Nopco Chemical Co
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Filing: 1943-11-19
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Granted: 1947-12-30
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Expires: 1963-11-19
Abstract
No abstract record available.
Inventors
- 👤 Loran O Buxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:58
CPC Classifications
A; A61; A61Q; A61Q17/00; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A61K; A61K8/00; A61K8/18; A61K8/92; A61K8/922; C; C08; C08K; C08K11/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10M; C10M1/00; C10M1/08; C11; C11B; C11B5/00; C11B5/0085; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/522; C10M2227/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1575529A
Cited
US1947432A
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US2098254A
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US2113216A
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US2182767A
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US2280815A
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US2296794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |