US2808999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic flight control apparatus
Assignee: Unisys Corp
•
Filing: 1949-05-07
•
Granted: 1957-10-08
•
Expires: 1969-05-07
Abstract
No abstract record available.
Inventors
- 👤 Peter J Chenery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:49
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816; G05D1/085
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2415819A
Cited
US1966170A
Cited
US2270875A
Cited
US2351977A
Cited
US2496809A
Cited
US2346838A
Cited
US2401421A
Cited
US2432036A
Cited
US2488286A
Cited
US2429642A
Cited
US2553597A
Cited
US2474618A
Cited
US2553560A
Cited
US2592173A
Cited
US2487793A
Cited
US2602611A
Cited
US2512902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |