US2624696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous carbonization of coal and oil mixtures
Assignee: Lummus Technology LLC
•
Filing: 1949-10-08
•
Granted: 1953-01-06
•
Expires: 1969-10-08
Abstract
No abstract record available.
Inventors
- 👤 August H Schutte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:22
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/06; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1826007A
Cited
US1899887A
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GB419444A
Cited
US2105156A
Cited
US2362270A
Cited
US2339932A
Cited
US2509019A
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US2462366A
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US2482137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |