US2431177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor generating plant
Assignee: Babcock and Wilcox Co
•
Filing: 1942-08-22
•
Granted: 1947-11-18
•
Expires: 1962-08-22
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Iager
- 👤 Carl C Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:04
CPC Classifications
F; F22; F22B; F22B33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US226405A
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US1713833A
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US1711659A
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US1709997A
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US1934723A
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US1959794A
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US1897845A
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US2000966A
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US2257805A
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FR837245A
Cited
US2296969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-17 | 1951-05-19 | 1951-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-17 | 1955-05-19 | 1955-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-17 | 1959-05-19 | 1959-11-18 | $7700.00 | Window Closed / Lapsed |