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Patent US2709889A successfully refreshed from Google Patents.
US2709889A
Expired / Lapsed
US
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Gas turbine using revolving ram jet burners
Assignee: Individual
•
Filing: 1951-06-22
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Granted: 1955-06-07
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Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 Wadsworth W Mount
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:36
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/14; F02C3/16; F02C3/165; F02K; F02K7/00; F02K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1146707A
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US1945608A
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US2188128A
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US2448972A
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US2565854A
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US2523655A
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US2516910A
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US2579049A
Cited
US2572723A
Cited
US2592938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |