US3058691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical take off composite aircraft
Assignee: Safran Aircraft Engines SAS
•
Filing: 1958-02-03
•
Granted: 1962-10-16
•
Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Eggers Gerhard
- 👤 Dumez Raoul Henri
- 👤 Ernst Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:36
CPC Classifications
B; B64; B64D; B64D5/00; B64C; B64C29/00; B64C29/0091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734698A
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US2364803A
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US2421742A
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US2692094A
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US2686473A
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US2767943A
Cited
GB732978A
Cited
US2763447A
Cited
US2859003A
Cited
US2936969A
Cited
US2821351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |