US3000364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor with superheater coil encircling heat carrier lift pipe
Assignee: Babcock and Wilcox Co
•
Filing: 1957-01-30
•
Granted: 1961-09-19
•
Expires: 1977-01-30
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Steever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:02
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1838; F22B1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2428872A
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US2431630A
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US2373767A
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US2487961A
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US2501695A
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US2554631A
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US2448334A
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US2629684A
Cited
US2662844A
Cited
US2689210A
Cited
US2785110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |