Patent US1154396A successfully refreshed from Google Patents.
US1154396A
Expired / Lapsed
US
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Automatic stabilizing apparatus for aeroplanes.
Assignee: Individual
•
Filing: 1912-08-13
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Granted: 1915-09-21
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Expires: 1932-08-13
Abstract
No abstract record available.
Inventors
- 👤 Louis Adolphe Hayot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:06
CPC Classifications
B; B64; B64C; B64C13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1918-09-20 | 1919-03-22 | 1919-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-09-20 | 1923-03-22 | 1923-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-09-20 | 1927-03-22 | 1927-09-21 | $7700.00 | Window Closed / Lapsed |