Patent US2584235A successfully refreshed from Google Patents.
US2584235A
Expired / Lapsed
US
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Automatic control means for stokers
Assignee: Combustion Engineering Inc
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Filing: 1948-04-30
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Granted: 1952-02-05
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Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 John S Skelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:31
CPC Classifications
F; F23; F23K; F23K3/00; F23K3/10; F23K3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1418871A
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US1472280A
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US1520922A
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US1698989A
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US2012934A
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US2070756A
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US2251483A
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US2196802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |