US2628598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generator
Assignee: Combustion Engineering Inc
•
Filing: 1948-10-25
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Granted: 1953-02-17
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Expires: 1968-10-25
Abstract
No abstract record available.
Inventors
- 👤 John Van Brunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:55
CPC Classifications
F; F22; F22G; F22G5/00; F22G5/04; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/14; F22B37/20; F22B37/202; F22G7/00; F22G7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092299A
Cited
GB473744A
Cited
US2247884A
Cited
US2243430A
Cited
US2310801A
Cited
US2334187A
Cited
US2298700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |