US2230542A
Expired / Lapsed
US
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Process for preparing improved oxidation inhibitors and products thereof
Assignee: Standard Oil Development Co
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Filing: 1937-11-27
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Granted: 1941-02-04
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Expires: 1957-11-27
Abstract
No abstract record available.
Inventors
- 👤 Richard N Meinert
- 👤 Jr James M Whiteley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/375; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2493; C11; C11B; C11B5/00; C11B5/0071; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/06; C10M2201/062; C10M2203/00; C10M2203/10; C10M2203/102; C10M2203/104; C10M2203/106; C10M2203/108; C10M2205/00; C10M2205/18; C10M2205/20; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2219/00; C10M2219/02; C10M2219/024; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2221/00; C10M2221/02; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 0
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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) | 1944-02-04 | 1944-08-05 | 1945-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-04 | 1948-08-05 | 1949-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-04 | 1952-08-05 | 1953-02-04 | $7700.00 | Window Closed / Lapsed |