US3000593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier aircraft having an annular wing
Assignee: Safran Aircraft Engines SAS
•
Filing: 1958-05-27
•
Granted: 1961-09-19
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Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 Eggers Gerhard
- 👤 Haberkorn Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:54
CPC Classifications
B; B64; B64D; B64D5/00; B64C; B64C29/00; B64C29/02; B64C39/00; B64C39/06; B64C39/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2585030A
Cited
US2421742A
Cited
US2621000A
Cited
US2591867A
Cited
US2907536A
Cited
US2712421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |