Patent US2636345A successfully refreshed from Google Patents.
US2636345A
Expired / Lapsed
US
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Gas turbine combustor having helically directed openings to admit steam and secondary air
Assignee: Babcock and Wilcox Co
•
Filing: 1948-03-19
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Granted: 1953-04-28
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Expires: 1968-03-19
Abstract
No abstract record available.
Inventors
- 👤 Zoller Ronald Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:39
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/12; F02C7/14; F02C7/141; F23; F23M; F23M5/00; F23M5/08; F23R; F23R3/00; F23R3/002; F23R3/005; F05; F05D; F05D2250/00; F05D2250/20; F05D2250/25
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |