Patent US2632297A successfully refreshed from Google Patents.
US2632297A
Expired / Lapsed
US
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Gas turbine plant
Assignee: Power Jets Research and Development Ltd
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Filing: 1949-08-12
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Granted: 1953-03-24
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Expires: 1969-08-12
Abstract
No abstract record available.
Inventors
- 👤 Ogston Walter Mactavish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:27
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/22; C; C21; C21B; C21B7/00; C21B7/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1762446A
Cited
US1997229A
Cited
FR822929A
Cited
US2313081A
Cited
US2312995A
Cited
US2282740A
Cited
US2423472A
Cited
GB560883A
Cited
GB585959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |