Patent US3597794A successfully refreshed from Google Patents.
Patent US2479376A successfully refreshed from Google Patents.
US2479376A
Expired / Lapsed
US
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Furnace plant for consuming raw coal dust
Assignee: "LA MURE"-COMBUSTIBLES ET INDUSTRIE SA
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Filing: 1945-09-01
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Granted: 1949-08-16
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Expires: 1965-09-01
Abstract
No abstract record available.
Inventors
- 👤 Lemaire Edouard Auguste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:18
CPC Classifications
F; F23; F23C; F23C99/00; F23C2700/00; F23C2700/06; F23C2700/066
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |