US2869518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant vapor generating and superheating unit with radiant superheater platens
Assignee: Babcock and Wilcox Co
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Filing: 1954-10-28
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Granted: 1959-01-20
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Expires: 1974-10-28
Abstract
No abstract record available.
Inventors
- 👤 Seidl Herbert
- 👤 Mogk August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:58
CPC Classifications
F; F22; F22G; F22G1/00; F22G1/06; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/14; F22B37/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |