US2679725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust effusion turbine jet propulsion power unit
Assignee: Individual
•
Filing: 1949-07-15
•
Granted: 1954-06-01
•
Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
- 👤 Sharma Devendra Nath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:38
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/12; F02K1/123; F02C; F02C3/00; F02C3/04; F02C3/06; F02C7/00; F02C7/04; F02K1/1207
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405723A
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US2505660A
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US2396911A
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US2455458A
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US2416389A
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US2430399A
Cited
GB586572A
Cited
US2464724A
Cited
US2570591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |