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US1792104A
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US
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Pulverized-coal-burning boiler furnace
Assignee: International Combustion Engineering Corp
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Filing: 1926-06-18
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Granted: 1931-02-10
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Expires: 1946-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lorenzi Otto De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:58
CPC Classifications
F; F23; F23M; F23M5/00; F23M5/08
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) | 1934-02-09 | 1934-08-11 | 1935-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-02-09 | 1938-08-11 | 1939-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-02-09 | 1942-08-11 | 1943-02-10 | $7700.00 | Window Closed / Lapsed |