Patent US2543024A successfully refreshed from Google Patents.
US2543024A
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Jet ejection propulsion
Assignee: Individual
•
Filing: 1946-06-28
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Granted: 1951-02-27
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Expires: 1966-06-28
Abstract
No abstract record available.
Inventors
- 👤 Duane W Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 23:17
CPC Classifications
F; F02; F02K; F02K7/00; B; B63; B63H; B63H11/00; B63H11/02; B63H11/04; B63H11/09; B63H11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
GB189815281A
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US870308A
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US1229729A
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US1375601A
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FR636853A
Cited
US1960826A
Cited
US2283863A
Cited
US2404334A
Cited
US2427845A
Cited
US2412825A
Cited
US2483663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |