US2285878A
Expired / Lapsed
US
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Composition containing metal deactivators and the method of preparing the same
Assignee: Shell Development Co
•
Filing: 1940-06-10
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Granted: 1942-06-09
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Expires: 1960-06-10
Abstract
No abstract record available.
Inventors
- 👤 Ellis R White
- 👤 Ernest L Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:52
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/228; C10L1/2283; C08; C08K; C08K5/00; C08K5/16; C08K5/29; C10M; C10M1/00; C10M1/08; C11; C11B; C11B5/00; C11B5/0042; C11B5/005; G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305; G03C5/3053; C10M2207/00; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/14; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2219/00; C10M2219/08; C10M2219/082; C10M2221/00; C10M2221/02; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17
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) | 1945-06-08 | 1945-12-08 | 1946-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-08 | 1949-12-08 | 1950-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-08 | 1953-12-08 | 1954-06-09 | $7700.00 | Window Closed / Lapsed |