Patent US2985410A successfully refreshed from Google Patents.
US2985410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stability control device for aircraft
Assignee: Lockheed Martin Corp
•
Filing: 1957-03-27
•
Granted: 1961-05-23
•
Expires: 1977-03-27
Abstract
No abstract record available.
Inventors
- 👤 Heinz K Richter
- 👤 Ralph R Heppe
- 👤 Celniker Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:19
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2584298A
Cited
US2630284A
Cited
US2838255A
Cited
US2701111A
Cited
US2761998A
Cited
US2768343A
Cited
US2767942A
Cited
US2922086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |