Patent US3477942A successfully refreshed from Google Patents.
US3477942A
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Hydrocarbon fuels from coal or any carbonaceous material
Assignee: United States Department of the Interior
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Filing: 1967-07-28
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Granted: 1969-11-11
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Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 Neal P Cochran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:09
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; H01M8/0606; H01M8/0612; H01M8/0643; C; C10; C10G; C10G1/00; C10G1/002; C10G1/006; C10G1/06; C10J; C10J3/00; C10J3/46; C10J3/463; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933; H01M8/10; H01M8/12; H01M2008/1293; H01M8/14; H01M2008/147; H01M2300/00; H01M2300/0017; H01M2300/0048; H01M2300/0051; H01M2300/0065; H01M2300/0068; H01M2300/0071; H01M2300/0074; H01M8/24; H01M8/249; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |