Patent US2872907A successfully refreshed from Google Patents.
US2872907A
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Multiple furnace vapor generator with unitary reheater and superheater control by gas recirculation
Assignee: Babcock and Wilcox Co
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Filing: 1953-03-09
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Granted: 1959-02-10
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Expires: 1973-03-09
Abstract
No abstract record available.
Inventors
- 👤 Charles S Smith
- 👤 Margaret S Chambrerlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/20; F22B; F22B31/00; F22B31/04; F22B33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1936699A
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US1931948A
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GB504114A
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US2298700A
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US2512677A
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US2526898A
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US2590712A
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US2649079A
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US2685279A
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US2781746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |