US2604074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pilot for aircraft
Assignee: Unisys Corp
•
Filing: 1948-03-30
•
Granted: 1952-07-22
•
Expires: 1968-03-30
Abstract
No abstract record available.
Inventors
- 👤 Glenny Arthur Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:14
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0055; G05D1/0061
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1022865A
Cited
US2197898A
Cited
US2398421A
Cited
US2370076A
Cited
US2416097A
Cited
US2373621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |