US2270181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Making shaped articles from coke and pitch
Assignee: Dow Chemical Co
•
Filing: 1939-08-12
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Granted: 1942-01-13
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Expires: 1959-08-12
Abstract
No abstract record available.
Inventors
- 👤 Edward R Cole
- 👤 Richard I Thrune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:15
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/06; C10L5/10; C10L5/14; C08; C08L; C08L97/00; C08L97/002; H; H01; H01M; H01M4/00; H01M4/86; H01M4/96; H05; H05B; H05B31/00; H05B31/02; H05B31/06; H05B31/08; H05B31/10; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
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) | 1945-01-12 | 1945-07-14 | 1946-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-12 | 1949-07-14 | 1950-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-12 | 1953-07-14 | 1954-01-13 | $7700.00 | Window Closed / Lapsed |